-7(3v+3)-3(v-8)=21

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Solution for -7(3v+3)-3(v-8)=21 equation:


Simplifying
-7(3v + 3) + -3(v + -8) = 21

Reorder the terms:
-7(3 + 3v) + -3(v + -8) = 21
(3 * -7 + 3v * -7) + -3(v + -8) = 21
(-21 + -21v) + -3(v + -8) = 21

Reorder the terms:
-21 + -21v + -3(-8 + v) = 21
-21 + -21v + (-8 * -3 + v * -3) = 21
-21 + -21v + (24 + -3v) = 21

Reorder the terms:
-21 + 24 + -21v + -3v = 21

Combine like terms: -21 + 24 = 3
3 + -21v + -3v = 21

Combine like terms: -21v + -3v = -24v
3 + -24v = 21

Solving
3 + -24v = 21

Solving for variable 'v'.

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

Add '-3' to each side of the equation.
3 + -3 + -24v = 21 + -3

Combine like terms: 3 + -3 = 0
0 + -24v = 21 + -3
-24v = 21 + -3

Combine like terms: 21 + -3 = 18
-24v = 18

Divide each side by '-24'.
v = -0.75

Simplifying
v = -0.75

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