5x+90=7x+100

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Solution for 5x+90=7x+100 equation:


Simplifying
5x + 90 = 7x + 100

Reorder the terms:
90 + 5x = 7x + 100

Reorder the terms:
90 + 5x = 100 + 7x

Solving
90 + 5x = 100 + 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.
90 + 5x + -7x = 100 + 7x + -7x

Combine like terms: 5x + -7x = -2x
90 + -2x = 100 + 7x + -7x

Combine like terms: 7x + -7x = 0
90 + -2x = 100 + 0
90 + -2x = 100

Add '-90' to each side of the equation.
90 + -90 + -2x = 100 + -90

Combine like terms: 90 + -90 = 0
0 + -2x = 100 + -90
-2x = 100 + -90

Combine like terms: 100 + -90 = 10
-2x = 10

Divide each side by '-2'.
x = -5

Simplifying
x = -5

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