-3(x+7)-7x=-4x-9

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Solution for -3(x+7)-7x=-4x-9 equation:


Simplifying
-3(x + 7) + -7x = -4x + -9

Reorder the terms:
-3(7 + x) + -7x = -4x + -9
(7 * -3 + x * -3) + -7x = -4x + -9
(-21 + -3x) + -7x = -4x + -9

Combine like terms: -3x + -7x = -10x
-21 + -10x = -4x + -9

Reorder the terms:
-21 + -10x = -9 + -4x

Solving
-21 + -10x = -9 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-21 + -10x + 4x = -9 + -4x + 4x

Combine like terms: -10x + 4x = -6x
-21 + -6x = -9 + -4x + 4x

Combine like terms: -4x + 4x = 0
-21 + -6x = -9 + 0
-21 + -6x = -9

Add '21' to each side of the equation.
-21 + 21 + -6x = -9 + 21

Combine like terms: -21 + 21 = 0
0 + -6x = -9 + 21
-6x = -9 + 21

Combine like terms: -9 + 21 = 12
-6x = 12

Divide each side by '-6'.
x = -2

Simplifying
x = -2

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