(3x+10)+(2x-20)=90

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Solution for (3x+10)+(2x-20)=90 equation:


Simplifying
(3x + 10) + (2x + -20) = 90

Reorder the terms:
(10 + 3x) + (2x + -20) = 90

Remove parenthesis around (10 + 3x)
10 + 3x + (2x + -20) = 90

Reorder the terms:
10 + 3x + (-20 + 2x) = 90

Remove parenthesis around (-20 + 2x)
10 + 3x + -20 + 2x = 90

Reorder the terms:
10 + -20 + 3x + 2x = 90

Combine like terms: 10 + -20 = -10
-10 + 3x + 2x = 90

Combine like terms: 3x + 2x = 5x
-10 + 5x = 90

Solving
-10 + 5x = 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 + 5x = 90 + 10

Combine like terms: -10 + 10 = 0
0 + 5x = 90 + 10
5x = 90 + 10

Combine like terms: 90 + 10 = 100
5x = 100

Divide each side by '5'.
x = 20

Simplifying
x = 20

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