-21=7(p-10)

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Solution for -21=7(p-10) equation:


Simplifying
-21 = 7(p + -10)

Reorder the terms:
-21 = 7(-10 + p)
-21 = (-10 * 7 + p * 7)
-21 = (-70 + 7p)

Solving
-21 = -70 + 7p

Solving for variable 'p'.

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

Add '-7p' to each side of the equation.
-21 + -7p = -70 + 7p + -7p

Combine like terms: 7p + -7p = 0
-21 + -7p = -70 + 0
-21 + -7p = -70

Add '21' to each side of the equation.
-21 + 21 + -7p = -70 + 21

Combine like terms: -21 + 21 = 0
0 + -7p = -70 + 21
-7p = -70 + 21

Combine like terms: -70 + 21 = -49
-7p = -49

Divide each side by '-7'.
p = 7

Simplifying
p = 7

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