13x-(9x-8)=40

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Solution for 13x-(9x-8)=40 equation:


Simplifying
13x + -1(9x + -8) = 40

Reorder the terms:
13x + -1(-8 + 9x) = 40
13x + (-8 * -1 + 9x * -1) = 40
13x + (8 + -9x) = 40

Reorder the terms:
8 + 13x + -9x = 40

Combine like terms: 13x + -9x = 4x
8 + 4x = 40

Solving
8 + 4x = 40

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 + 4x = 40 + -8

Combine like terms: 8 + -8 = 0
0 + 4x = 40 + -8
4x = 40 + -8

Combine like terms: 40 + -8 = 32
4x = 32

Divide each side by '4'.
x = 8

Simplifying
x = 8

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