-4(2r+7)-7(1+4r)=73

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Solution for -4(2r+7)-7(1+4r)=73 equation:


Simplifying
-4(2r + 7) + -7(1 + 4r) = 73

Reorder the terms:
-4(7 + 2r) + -7(1 + 4r) = 73
(7 * -4 + 2r * -4) + -7(1 + 4r) = 73
(-28 + -8r) + -7(1 + 4r) = 73
-28 + -8r + (1 * -7 + 4r * -7) = 73
-28 + -8r + (-7 + -28r) = 73

Reorder the terms:
-28 + -7 + -8r + -28r = 73

Combine like terms: -28 + -7 = -35
-35 + -8r + -28r = 73

Combine like terms: -8r + -28r = -36r
-35 + -36r = 73

Solving
-35 + -36r = 73

Solving for variable 'r'.

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

Add '35' to each side of the equation.
-35 + 35 + -36r = 73 + 35

Combine like terms: -35 + 35 = 0
0 + -36r = 73 + 35
-36r = 73 + 35

Combine like terms: 73 + 35 = 108
-36r = 108

Divide each side by '-36'.
r = -3

Simplifying
r = -3

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