10(x+3)+20x=90

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


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

Reorder the terms:
10(3 + x) + 20x = 90
(3 * 10 + x * 10) + 20x = 90
(30 + 10x) + 20x = 90

Combine like terms: 10x + 20x = 30x
30 + 30x = 90

Solving
30 + 30x = 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 + 30x = 90 + -30

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

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

Divide each side by '30'.
x = 2

Simplifying
x = 2

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