7x-102+2x+39=90

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Solution for 7x-102+2x+39=90 equation:


Simplifying
7x + -102 + 2x + 39 = 90

Reorder the terms:
-102 + 39 + 7x + 2x = 90

Combine like terms: -102 + 39 = -63
-63 + 7x + 2x = 90

Combine like terms: 7x + 2x = 9x
-63 + 9x = 90

Solving
-63 + 9x = 90

Solving for variable 'x'.

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

Add '63' to each side of the equation.
-63 + 63 + 9x = 90 + 63

Combine like terms: -63 + 63 = 0
0 + 9x = 90 + 63
9x = 90 + 63

Combine like terms: 90 + 63 = 153
9x = 153

Divide each side by '9'.
x = 17

Simplifying
x = 17

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