7p+9=4[p-3]

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Solution for 7p+9=4[p-3] equation:


Simplifying
7p + 9 = 4[p + -3]

Reorder the terms:
9 + 7p = 4[p + -3]

Reorder the terms:
9 + 7p = 4[-3 + p]
9 + 7p = [-3 * 4 + p * 4]
9 + 7p = [-12 + 4p]

Solving
9 + 7p = -12 + 4p

Solving for variable 'p'.

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

Add '-4p' to each side of the equation.
9 + 7p + -4p = -12 + 4p + -4p

Combine like terms: 7p + -4p = 3p
9 + 3p = -12 + 4p + -4p

Combine like terms: 4p + -4p = 0
9 + 3p = -12 + 0
9 + 3p = -12

Add '-9' to each side of the equation.
9 + -9 + 3p = -12 + -9

Combine like terms: 9 + -9 = 0
0 + 3p = -12 + -9
3p = -12 + -9

Combine like terms: -12 + -9 = -21
3p = -21

Divide each side by '3'.
p = -7

Simplifying
p = -7

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