90=7x+55

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Solution for 90=7x+55 equation:


Simplifying
90 = 7x + 55

Reorder the terms:
90 = 55 + 7x

Solving
90 = 55 + 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 + -7x = 55 + 7x + -7x

Combine like terms: 7x + -7x = 0
90 + -7x = 55 + 0
90 + -7x = 55

Add '-90' to each side of the equation.
90 + -90 + -7x = 55 + -90

Combine like terms: 90 + -90 = 0
0 + -7x = 55 + -90
-7x = 55 + -90

Combine like terms: 55 + -90 = -35
-7x = -35

Divide each side by '-7'.
x = 5

Simplifying
x = 5

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