3x-13+4x-16=90

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Solution for 3x-13+4x-16=90 equation:


Simplifying
3x + -13 + 4x + -16 = 90

Reorder the terms:
-13 + -16 + 3x + 4x = 90

Combine like terms: -13 + -16 = -29
-29 + 3x + 4x = 90

Combine like terms: 3x + 4x = 7x
-29 + 7x = 90

Solving
-29 + 7x = 90

Solving for variable 'x'.

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

Add '29' to each side of the equation.
-29 + 29 + 7x = 90 + 29

Combine like terms: -29 + 29 = 0
0 + 7x = 90 + 29
7x = 90 + 29

Combine like terms: 90 + 29 = 119
7x = 119

Divide each side by '7'.
x = 17

Simplifying
x = 17

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