-7(4-r)+9r=

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


Simplifying
-7(4 + -1r) + 9r = 0
(4 * -7 + -1r * -7) + 9r = 0
(-28 + 7r) + 9r = 0

Combine like terms: 7r + 9r = 16r
-28 + 16r = 0

Solving
-28 + 16r = 0

Solving for variable 'r'.

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

Add '28' to each side of the equation.
-28 + 28 + 16r = 0 + 28

Combine like terms: -28 + 28 = 0
0 + 16r = 0 + 28
16r = 0 + 28

Combine like terms: 0 + 28 = 28
16r = 28

Divide each side by '16'.
r = 1.75

Simplifying
r = 1.75

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