x^2+10x-3=7x

Simple and best practice solution for x^2+10x-3=7x equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for x^2+10x-3=7x equation:


Simplifying
x2 + 10x + -3 = 7x

Reorder the terms:
-3 + 10x + x2 = 7x

Solving
-3 + 10x + x2 = 7x

Solving for variable 'x'.

Reorder the terms:
-3 + 10x + -7x + x2 = 7x + -7x

Combine like terms: 10x + -7x = 3x
-3 + 3x + x2 = 7x + -7x

Combine like terms: 7x + -7x = 0
-3 + 3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 3x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + 3x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 3x + x2 = 0 + 3
3x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
3x + x2 = 3

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = 3 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 3 + 2.25

Combine like terms: 3 + 2.25 = 5.25
2.25 + 3x + x2 = 5.25

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 5.25

Calculate the square root of the right side: 2.291287847

Break this problem into two subproblems by setting 
(x + 1.5) equal to 2.291287847 and -2.291287847.

Subproblem 1

x + 1.5 = 2.291287847 Simplifying x + 1.5 = 2.291287847 Reorder the terms: 1.5 + x = 2.291287847 Solving 1.5 + x = 2.291287847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 2.291287847 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 2.291287847 + -1.5 x = 2.291287847 + -1.5 Combine like terms: 2.291287847 + -1.5 = 0.791287847 x = 0.791287847 Simplifying x = 0.791287847

Subproblem 2

x + 1.5 = -2.291287847 Simplifying x + 1.5 = -2.291287847 Reorder the terms: 1.5 + x = -2.291287847 Solving 1.5 + x = -2.291287847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -2.291287847 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -2.291287847 + -1.5 x = -2.291287847 + -1.5 Combine like terms: -2.291287847 + -1.5 = -3.791287847 x = -3.791287847 Simplifying x = -3.791287847

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.791287847, -3.791287847}

See similar equations:

| 7s=64 | | 8x-9x+3x-6x= | | 9k+3=3(3k+1) | | -10k=-20 | | 9a/10•5/12a | | 8x-3+6x-5=180 | | x^2+64=29 | | h=-16t^2+112t+92 | | (4x-6)+(3x+88)=124 | | 3(9s+2)-12s=3(5s+1)-6 | | 12z-5z=85 | | log(4/3) | | 2/3=b-5/6 | | 44-9+9c=134 | | 13+(b-9)=15 | | x^2-16x+270=0 | | h^2-2.5h-1.25=0 | | 3+m+2-m=-4 | | 7/8x9 | | f(x)+f(2x+y)+5xy=f(3x-y)+2x^2+1 | | 2(2x-3)=-12 | | 6(4L+7k)-16L+14=0 | | 2(7x+1)+5(4x-2)=9 | | h^2-5/2h-5/4=0 | | h^2-5/2h-5,4=0 | | b^2+5b+25=0 | | 15-2(a-5)= | | -9(x-18)=108 | | 62.52=27.39+x | | 7+9(5t-4)=47 | | 11=3+t | | 0.25k=3(-0.25k+3) |

Equations solver categories