12x-3(x+5)=30

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Solution for 12x-3(x+5)=30 equation:


Simplifying
12x + -3(x + 5) = 30

Reorder the terms:
12x + -3(5 + x) = 30
12x + (5 * -3 + x * -3) = 30
12x + (-15 + -3x) = 30

Reorder the terms:
-15 + 12x + -3x = 30

Combine like terms: 12x + -3x = 9x
-15 + 9x = 30

Solving
-15 + 9x = 30

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 9x = 30 + 15

Combine like terms: -15 + 15 = 0
0 + 9x = 30 + 15
9x = 30 + 15

Combine like terms: 30 + 15 = 45
9x = 45

Divide each side by '9'.
x = 5

Simplifying
x = 5

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