12x+7(-3x-1)=63

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Solution for 12x+7(-3x-1)=63 equation:


Simplifying
12x + 7(-3x + -1) = 63

Reorder the terms:
12x + 7(-1 + -3x) = 63
12x + (-1 * 7 + -3x * 7) = 63
12x + (-7 + -21x) = 63

Reorder the terms:
-7 + 12x + -21x = 63

Combine like terms: 12x + -21x = -9x
-7 + -9x = 63

Solving
-7 + -9x = 63

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + -9x = 63 + 7

Combine like terms: -7 + 7 = 0
0 + -9x = 63 + 7
-9x = 63 + 7

Combine like terms: 63 + 7 = 70
-9x = 70

Divide each side by '-9'.
x = -7.777777778

Simplifying
x = -7.777777778

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