(20-3x)+(6x+10)=90

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Solution for (20-3x)+(6x+10)=90 equation:


Simplifying
(20 + -3x) + (6x + 10) = 90

Remove parenthesis around (20 + -3x)
20 + -3x + (6x + 10) = 90

Reorder the terms:
20 + -3x + (10 + 6x) = 90

Remove parenthesis around (10 + 6x)
20 + -3x + 10 + 6x = 90

Reorder the terms:
20 + 10 + -3x + 6x = 90

Combine like terms: 20 + 10 = 30
30 + -3x + 6x = 90

Combine like terms: -3x + 6x = 3x
30 + 3x = 90

Solving
30 + 3x = 90

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 3x = 90 + -30

Combine like terms: 30 + -30 = 0
0 + 3x = 90 + -30
3x = 90 + -30

Combine like terms: 90 + -30 = 60
3x = 60

Divide each side by '3'.
x = 20

Simplifying
x = 20

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