7+9+7r=4(3+2r)-3

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Solution for 7+9+7r=4(3+2r)-3 equation:


Simplifying
7 + 9 + 7r = 4(3 + 2r) + -3

Combine like terms: 7 + 9 = 16
16 + 7r = 4(3 + 2r) + -3
16 + 7r = (3 * 4 + 2r * 4) + -3
16 + 7r = (12 + 8r) + -3

Reorder the terms:
16 + 7r = 12 + -3 + 8r

Combine like terms: 12 + -3 = 9
16 + 7r = 9 + 8r

Solving
16 + 7r = 9 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
16 + 7r + -8r = 9 + 8r + -8r

Combine like terms: 7r + -8r = -1r
16 + -1r = 9 + 8r + -8r

Combine like terms: 8r + -8r = 0
16 + -1r = 9 + 0
16 + -1r = 9

Add '-16' to each side of the equation.
16 + -16 + -1r = 9 + -16

Combine like terms: 16 + -16 = 0
0 + -1r = 9 + -16
-1r = 9 + -16

Combine like terms: 9 + -16 = -7
-1r = -7

Divide each side by '-1'.
r = 7

Simplifying
r = 7

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