7x-20+3x+10=90

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Solution for 7x-20+3x+10=90 equation:


Simplifying
7x + -20 + 3x + 10 = 90

Reorder the terms:
-20 + 10 + 7x + 3x = 90

Combine like terms: -20 + 10 = -10
-10 + 7x + 3x = 90

Combine like terms: 7x + 3x = 10x
-10 + 10x = 90

Solving
-10 + 10x = 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 + 10x = 90 + 10

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

Combine like terms: 90 + 10 = 100
10x = 100

Divide each side by '10'.
x = 10

Simplifying
x = 10

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