7+9r+12p-2r-2p-4=

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Solution for 7+9r+12p-2r-2p-4= equation:


Simplifying
7 + 9r + 12p + -2r + -2p + -4 = 0

Reorder the terms:
7 + -4 + 12p + -2p + 9r + -2r = 0

Combine like terms: 7 + -4 = 3
3 + 12p + -2p + 9r + -2r = 0

Combine like terms: 12p + -2p = 10p
3 + 10p + 9r + -2r = 0

Combine like terms: 9r + -2r = 7r
3 + 10p + 7r = 0

Solving
3 + 10p + 7r = 0

Solving for variable 'p'.

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

Add '-3' to each side of the equation.
3 + 10p + -3 + 7r = 0 + -3

Reorder the terms:
3 + -3 + 10p + 7r = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 10p + 7r = 0 + -3
10p + 7r = 0 + -3

Combine like terms: 0 + -3 = -3
10p + 7r = -3

Add '-7r' to each side of the equation.
10p + 7r + -7r = -3 + -7r

Combine like terms: 7r + -7r = 0
10p + 0 = -3 + -7r
10p = -3 + -7r

Divide each side by '10'.
p = -0.3 + -0.7r

Simplifying
p = -0.3 + -0.7r

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