(7x+9)(3x+1)=0

Simple and best practice solution for (7x+9)(3x+1)=0 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 (7x+9)(3x+1)=0 equation: 


Simplifying
(7x + 9)(3x + 1) = 0

Reorder the terms:
(9 + 7x)(3x + 1) = 0

Reorder the terms:
(9 + 7x)(1 + 3x) = 0

Multiply (9 + 7x) * (1 + 3x)
(9(1 + 3x) + 7x * (1 + 3x)) = 0
((1 * 9 + 3x * 9) + 7x * (1 + 3x)) = 0
((9 + 27x) + 7x * (1 + 3x)) = 0
(9 + 27x + (1 * 7x + 3x * 7x)) = 0
(9 + 27x + (7x + 21x2)) = 0

Combine like terms: 27x + 7x = 34x
(9 + 34x + 21x2) = 0

Solving
9 + 34x + 21x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(9 + 7x)(1 + 3x) = 0


Subproblem 1
Set the factor '(9 + 7x)' equal to zero and attempt to solve:

Simplifying
9 + 7x = 0

Solving
9 + 7x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + 7x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 7x = 0 + -9
7x = 0 + -9

Combine like terms: 0 + -9 = -9
7x = -9

Divide each side by '7'.
x = -1.285714286

Simplifying
x = -1.285714286

Subproblem 2
Set the factor '(1 + 3x)' equal to zero and attempt to solve:

Simplifying
1 + 3x = 0

Solving
1 + 3x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + 3x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 3x = 0 + -1
3x = 0 + -1

Combine like terms: 0 + -1 = -1
3x = -1

Divide each side by '3'.
x = -0.3333333333

Simplifying
x = -0.3333333333
Solution
x = {-1.285714286, -0.3333333333}

See similar equations:

| -3.2x+4=1.8x-11 | | 05=7+3r | | 6d-9=9 | | 104-20q=-736 | | 8vX+4=0 | | 5=13-2d | | 3(g+16)=69 | | 76=2(t-53) | | (10x+y)(10y+x)=1008 | | -235=-5(6x-1) | | 6(8t+1)-8=t-(t+1) | | .05x+.1y=2.35 | | 10/35=x/15 | | 4(6-5x)+13=-43 | | 2/7x63/84 | | 10/35=x/5 | | hb=16h-4b-8 | | (7m-1)(8m+4)= | | 4+4*7+7= | | x/8=x-35 | | (-x)(-y)(2-3)= | | a=10b+13 | | 27=-5w+9w+7 | | 6v-14=-20 | | (5n-2)(8n-8)= | | -4(w-7)(-w+5)=0 | | -5-2x+5=2 | | y-3/3 | | 7x-60= | | X*14=y*18 | | (2x-2)(8x-8)= | | 0=x-ln(x) |

Equations solver categories