3(x-20)-1.5x=15

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Solution for 3(x-20)-1.5x=15 equation: 


Simplifying
3(x + -20) + -1.5x = 15

Reorder the terms:
3(-20 + x) + -1.5x = 15
(-20 * 3 + x * 3) + -1.5x = 15
(-60 + 3x) + -1.5x = 15

Combine like terms: 3x + -1.5x = 1.5x
-60 + 1.5x = 15

Solving
-60 + 1.5x = 15

Solving for variable 'x'.

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

Add '60' to each side of the equation.
-60 + 60 + 1.5x = 15 + 60

Combine like terms: -60 + 60 = 0
0 + 1.5x = 15 + 60
1.5x = 15 + 60

Combine like terms: 15 + 60 = 75
1.5x = 75

Divide each side by '1.5'.
x = 50

Simplifying
x = 50

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