(2x-20)+(4x-10)=90

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Solution for (2x-20)+(4x-10)=90 equation: 


Simplifying
(2x + -20) + (4x + -10) = 90

Reorder the terms:
(-20 + 2x) + (4x + -10) = 90

Remove parenthesis around (-20 + 2x)
-20 + 2x + (4x + -10) = 90

Reorder the terms:
-20 + 2x + (-10 + 4x) = 90

Remove parenthesis around (-10 + 4x)
-20 + 2x + -10 + 4x = 90

Reorder the terms:
-20 + -10 + 2x + 4x = 90

Combine like terms: -20 + -10 = -30
-30 + 2x + 4x = 90

Combine like terms: 2x + 4x = 6x
-30 + 6x = 90

Solving
-30 + 6x = 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 + 6x = 90 + 30

Combine like terms: -30 + 30 = 0
0 + 6x = 90 + 30
6x = 90 + 30

Combine like terms: 90 + 30 = 120
6x = 120

Divide each side by '6'.
x = 20

Simplifying
x = 20

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