7x+13+42=90

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Solution for 7x+13+42=90 equation:


Simplifying
7x + 13 + 42 = 90

Reorder the terms:
13 + 42 + 7x = 90

Combine like terms: 13 + 42 = 55
55 + 7x = 90

Solving
55 + 7x = 90

Solving for variable 'x'.

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

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

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

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

Divide each side by '7'.
x = 5

Simplifying
x = 5

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