3x+15+x+7=90

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Solution for 3x+15+x+7=90 equation:


Simplifying
3x + 15 + x + 7 = 90

Reorder the terms:
15 + 7 + 3x + x = 90

Combine like terms: 15 + 7 = 22
22 + 3x + x = 90

Combine like terms: 3x + x = 4x
22 + 4x = 90

Solving
22 + 4x = 90

Solving for variable 'x'.

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

Add '-22' to each side of the equation.
22 + -22 + 4x = 90 + -22

Combine like terms: 22 + -22 = 0
0 + 4x = 90 + -22
4x = 90 + -22

Combine like terms: 90 + -22 = 68
4x = 68

Divide each side by '4'.
x = 17

Simplifying
x = 17

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