x^2+3x=2x-7

Simple and best practice solution for x^2+3x=2x-7 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+3x=2x-7 equation:


Simplifying
x2 + 3x = 2x + -7

Reorder the terms:
3x + x2 = 2x + -7

Reorder the terms:
3x + x2 = -7 + 2x

Solving
3x + x2 = -7 + 2x

Solving for variable 'x'.

Reorder the terms:
7 + 3x + -2x + x2 = -7 + 2x + 7 + -2x

Combine like terms: 3x + -2x = 1x
7 + 1x + x2 = -7 + 2x + 7 + -2x

Reorder the terms:
7 + 1x + x2 = -7 + 7 + 2x + -2x

Combine like terms: -7 + 7 = 0
7 + 1x + x2 = 0 + 2x + -2x
7 + 1x + x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
7 + 1x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + 1x + -7 + x2 = 0 + -7

Reorder the terms:
7 + -7 + 1x + x2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 1x + x2 = 0 + -7
1x + x2 = 0 + -7

Combine like terms: 0 + -7 = -7
1x + x2 = -7

The x term is 1x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
x + 0.25 + x2 = -7 + 0.25

Reorder the terms:
0.25 + x + x2 = -7 + 0.25

Combine like terms: -7 + 0.25 = -6.75
0.25 + x + x2 = -6.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -6.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| .45x+.05(10-x)=.10(69) | | -4(4x+5)=-12(x+2) | | 11x+9y=59 | | (k-2)y=6-k(x+1)a | | 7x^2+19=0 | | 6x-6=6+4x | | f(x)=-16t^2+23.8t+5 | | 500x=200(x+2) | | -(5n+8)=40+3n | | -3(-1+10x)+12(x+4)=-9x+8x | | 3x+2=-x-14 | | F(5)=-7x-5 | | 5(7+6x)=-x-27 | | F(x)=-7x-5f(5) | | 5(3x+1)=2(4x+13) | | 0.08(2x-7)=0.16(x+7)-1.68 | | -7=n-11 | | 3(4X-2)+2x=34 | | 2a+2b=68 | | 5w+3w=48 | | 12(-p+12)=-4(x+9)+4p | | 2.5x-4.5=20 | | 7x+2=8-8x | | 6-3(-27)= | | 7(r+7)=5r+54 | | 5x+5.5=35.5 | | y+5=7y-21 | | [2y+6]=15 | | -12m+2(8x-9)=-6(1-x) | | 4x+9x=9 | | 7(-1+6k)-2(5k-8)=9 | | e^2-3=12 |

Equations solver categories