3x-5(3x+21)=

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Solution for 3x-5(3x+21)= equation:


Simplifying
3x + -5(3x + 21) = 0

Reorder the terms:
3x + -5(21 + 3x) = 0
3x + (21 * -5 + 3x * -5) = 0
3x + (-105 + -15x) = 0

Reorder the terms:
-105 + 3x + -15x = 0

Combine like terms: 3x + -15x = -12x
-105 + -12x = 0

Solving
-105 + -12x = 0

Solving for variable 'x'.

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

Add '105' to each side of the equation.
-105 + 105 + -12x = 0 + 105

Combine like terms: -105 + 105 = 0
0 + -12x = 0 + 105
-12x = 0 + 105

Combine like terms: 0 + 105 = 105
-12x = 105

Divide each side by '-12'.
x = -8.75

Simplifying
x = -8.75

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