-4(r+7)=-77

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Solution for -4(r+7)=-77 equation:


Simplifying
-4(r + 7) = -77

Reorder the terms:
-4(7 + r) = -77
(7 * -4 + r * -4) = -77
(-28 + -4r) = -77

Solving
-28 + -4r = -77

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 + -4r = -77 + 28

Combine like terms: -28 + 28 = 0
0 + -4r = -77 + 28
-4r = -77 + 28

Combine like terms: -77 + 28 = -49
-4r = -49

Divide each side by '-4'.
r = 12.25

Simplifying
r = 12.25

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