90+x+28+6x-15=180

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Solution for 90+x+28+6x-15=180 equation:


Simplifying
90 + x + 28 + 6x + -15 = 180

Reorder the terms:
90 + 28 + -15 + x + 6x = 180

Combine like terms: 90 + 28 = 118
118 + -15 + x + 6x = 180

Combine like terms: 118 + -15 = 103
103 + x + 6x = 180

Combine like terms: x + 6x = 7x
103 + 7x = 180

Solving
103 + 7x = 180

Solving for variable 'x'.

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

Add '-103' to each side of the equation.
103 + -103 + 7x = 180 + -103

Combine like terms: 103 + -103 = 0
0 + 7x = 180 + -103
7x = 180 + -103

Combine like terms: 180 + -103 = 77
7x = 77

Divide each side by '7'.
x = 11

Simplifying
x = 11

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