7x+20+4x-10=90

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Solution for 7x+20+4x-10=90 equation:


Simplifying
7x + 20 + 4x + -10 = 90

Reorder the terms:
20 + -10 + 7x + 4x = 90

Combine like terms: 20 + -10 = 10
10 + 7x + 4x = 90

Combine like terms: 7x + 4x = 11x
10 + 11x = 90

Solving
10 + 11x = 90

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 11x = 90 + -10

Combine like terms: 10 + -10 = 0
0 + 11x = 90 + -10
11x = 90 + -10

Combine like terms: 90 + -10 = 80
11x = 80

Divide each side by '11'.
x = 7.272727273

Simplifying
x = 7.272727273

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