21p+18-7=p-29

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Solution for 21p+18-7=p-29 equation:


Simplifying
21p + 18 + -7 = p + -29

Reorder the terms:
18 + -7 + 21p = p + -29

Combine like terms: 18 + -7 = 11
11 + 21p = p + -29

Reorder the terms:
11 + 21p = -29 + p

Solving
11 + 21p = -29 + p

Solving for variable 'p'.

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

Add '-1p' to each side of the equation.
11 + 21p + -1p = -29 + p + -1p

Combine like terms: 21p + -1p = 20p
11 + 20p = -29 + p + -1p

Combine like terms: p + -1p = 0
11 + 20p = -29 + 0
11 + 20p = -29

Add '-11' to each side of the equation.
11 + -11 + 20p = -29 + -11

Combine like terms: 11 + -11 = 0
0 + 20p = -29 + -11
20p = -29 + -11

Combine like terms: -29 + -11 = -40
20p = -40

Divide each side by '20'.
p = -2

Simplifying
p = -2

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