-21p-6(2-5p)=5(p-2)-18

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Solution for -21p-6(2-5p)=5(p-2)-18 equation:


Simplifying
-21p + -6(2 + -5p) = 5(p + -2) + -18
-21p + (2 * -6 + -5p * -6) = 5(p + -2) + -18
-21p + (-12 + 30p) = 5(p + -2) + -18

Reorder the terms:
-12 + -21p + 30p = 5(p + -2) + -18

Combine like terms: -21p + 30p = 9p
-12 + 9p = 5(p + -2) + -18

Reorder the terms:
-12 + 9p = 5(-2 + p) + -18
-12 + 9p = (-2 * 5 + p * 5) + -18
-12 + 9p = (-10 + 5p) + -18

Reorder the terms:
-12 + 9p = -10 + -18 + 5p

Combine like terms: -10 + -18 = -28
-12 + 9p = -28 + 5p

Solving
-12 + 9p = -28 + 5p

Solving for variable 'p'.

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

Add '-5p' to each side of the equation.
-12 + 9p + -5p = -28 + 5p + -5p

Combine like terms: 9p + -5p = 4p
-12 + 4p = -28 + 5p + -5p

Combine like terms: 5p + -5p = 0
-12 + 4p = -28 + 0
-12 + 4p = -28

Add '12' to each side of the equation.
-12 + 12 + 4p = -28 + 12

Combine like terms: -12 + 12 = 0
0 + 4p = -28 + 12
4p = -28 + 12

Combine like terms: -28 + 12 = -16
4p = -16

Divide each side by '4'.
p = -4

Simplifying
p = -4

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