100-4x=9-7x

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Solution for 100-4x=9-7x equation:


Simplifying
100 + -4x = 9 + -7x

Solving
100 + -4x = 9 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
100 + -4x + 7x = 9 + -7x + 7x

Combine like terms: -4x + 7x = 3x
100 + 3x = 9 + -7x + 7x

Combine like terms: -7x + 7x = 0
100 + 3x = 9 + 0
100 + 3x = 9

Add '-100' to each side of the equation.
100 + -100 + 3x = 9 + -100

Combine like terms: 100 + -100 = 0
0 + 3x = 9 + -100
3x = 9 + -100

Combine like terms: 9 + -100 = -91
3x = -91

Divide each side by '3'.
x = -30.33333333

Simplifying
x = -30.33333333

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