7(4x-5)-4(6x-5)=-91

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Solution for 7(4x-5)-4(6x-5)=-91 equation:


Simplifying
7(4x + -5) + -4(6x + -5) = -91

Reorder the terms:
7(-5 + 4x) + -4(6x + -5) = -91
(-5 * 7 + 4x * 7) + -4(6x + -5) = -91
(-35 + 28x) + -4(6x + -5) = -91

Reorder the terms:
-35 + 28x + -4(-5 + 6x) = -91
-35 + 28x + (-5 * -4 + 6x * -4) = -91
-35 + 28x + (20 + -24x) = -91

Reorder the terms:
-35 + 20 + 28x + -24x = -91

Combine like terms: -35 + 20 = -15
-15 + 28x + -24x = -91

Combine like terms: 28x + -24x = 4x
-15 + 4x = -91

Solving
-15 + 4x = -91

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 4x = -91 + 15

Combine like terms: -15 + 15 = 0
0 + 4x = -91 + 15
4x = -91 + 15

Combine like terms: -91 + 15 = -76
4x = -76

Divide each side by '4'.
x = -19

Simplifying
x = -19

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