-3-8(x+4)=21

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Solution for -3-8(x+4)=21 equation:


Simplifying
-3 + -8(x + 4) = 21

Reorder the terms:
-3 + -8(4 + x) = 21
-3 + (4 * -8 + x * -8) = 21
-3 + (-32 + -8x) = 21

Combine like terms: -3 + -32 = -35
-35 + -8x = 21

Solving
-35 + -8x = 21

Solving for variable 'x'.

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

Add '35' to each side of the equation.
-35 + 35 + -8x = 21 + 35

Combine like terms: -35 + 35 = 0
0 + -8x = 21 + 35
-8x = 21 + 35

Combine like terms: 21 + 35 = 56
-8x = 56

Divide each side by '-8'.
x = -7

Simplifying
x = -7

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