100+9x=128+5x

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Solution for 100+9x=128+5x equation:


Simplifying
100 + 9x = 128 + 5x

Solving
100 + 9x = 128 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
100 + 9x + -5x = 128 + 5x + -5x

Combine like terms: 9x + -5x = 4x
100 + 4x = 128 + 5x + -5x

Combine like terms: 5x + -5x = 0
100 + 4x = 128 + 0
100 + 4x = 128

Add '-100' to each side of the equation.
100 + -100 + 4x = 128 + -100

Combine like terms: 100 + -100 = 0
0 + 4x = 128 + -100
4x = 128 + -100

Combine like terms: 128 + -100 = 28
4x = 28

Divide each side by '4'.
x = 7

Simplifying
x = 7

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