3x+2(x-20)=220

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Solution for 3x+2(x-20)=220 equation:


Simplifying
3x + 2(x + -20) = 220

Reorder the terms:
3x + 2(-20 + x) = 220
3x + (-20 * 2 + x * 2) = 220
3x + (-40 + 2x) = 220

Reorder the terms:
-40 + 3x + 2x = 220

Combine like terms: 3x + 2x = 5x
-40 + 5x = 220

Solving
-40 + 5x = 220

Solving for variable 'x'.

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

Add '40' to each side of the equation.
-40 + 40 + 5x = 220 + 40

Combine like terms: -40 + 40 = 0
0 + 5x = 220 + 40
5x = 220 + 40

Combine like terms: 220 + 40 = 260
5x = 260

Divide each side by '5'.
x = 52

Simplifying
x = 52

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