7x-4(x-2)=129

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Solution for 7x-4(x-2)=129 equation:


Simplifying
7x + -4(x + -2) = 129

Reorder the terms:
7x + -4(-2 + x) = 129
7x + (-2 * -4 + x * -4) = 129
7x + (8 + -4x) = 129

Reorder the terms:
8 + 7x + -4x = 129

Combine like terms: 7x + -4x = 3x
8 + 3x = 129

Solving
8 + 3x = 129

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 3x = 129 + -8

Combine like terms: 8 + -8 = 0
0 + 3x = 129 + -8
3x = 129 + -8

Combine like terms: 129 + -8 = 121
3x = 121

Divide each side by '3'.
x = 40.33333333

Simplifying
x = 40.33333333

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