2x+3(40-x)=80

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Solution for 2x+3(40-x)=80 equation:


Simplifying
2x + 3(40 + -1x) = 80
2x + (40 * 3 + -1x * 3) = 80
2x + (120 + -3x) = 80

Reorder the terms:
120 + 2x + -3x = 80

Combine like terms: 2x + -3x = -1x
120 + -1x = 80

Solving
120 + -1x = 80

Solving for variable 'x'.

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

Add '-120' to each side of the equation.
120 + -120 + -1x = 80 + -120

Combine like terms: 120 + -120 = 0
0 + -1x = 80 + -120
-1x = 80 + -120

Combine like terms: 80 + -120 = -40
-1x = -40

Divide each side by '-1'.
x = 40

Simplifying
x = 40

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