3(x+4x)=40-15+20

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Solution for 3(x+4x)=40-15+20 equation: 


Simplifying
3(x + 4x) = 40 + -15 + 20

Combine like terms: x + 4x = 5x
3(5x) = 40 + -15 + 20

Remove parenthesis around (5x)
3 * 5x = 40 + -15 + 20

Multiply 3 * 5
15x = 40 + -15 + 20

Combine like terms: 40 + -15 = 25
15x = 25 + 20

Combine like terms: 25 + 20 = 45
15x = 45

Solving
15x = 45

Solving for variable 'x'.

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

Divide each side by '15'.
x = 3

Simplifying
x = 3

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