-7(4+r)=28

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Solution for -7(4+r)=28 equation: 


Simplifying
-7(4 + r) = 28
(4 * -7 + r * -7) = 28
(-28 + -7r) = 28

Solving
-28 + -7r = 28

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 + -7r = 28 + 28

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

Combine like terms: 28 + 28 = 56
-7r = 56

Divide each side by '-7'.
r = -8

Simplifying
r = -8

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