-5(7r-3)-5(7+4r)=-75

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Solution for -5(7r-3)-5(7+4r)=-75 equation:


Simplifying
-5(7r + -3) + -5(7 + 4r) = -75

Reorder the terms:
-5(-3 + 7r) + -5(7 + 4r) = -75
(-3 * -5 + 7r * -5) + -5(7 + 4r) = -75
(15 + -35r) + -5(7 + 4r) = -75
15 + -35r + (7 * -5 + 4r * -5) = -75
15 + -35r + (-35 + -20r) = -75

Reorder the terms:
15 + -35 + -35r + -20r = -75

Combine like terms: 15 + -35 = -20
-20 + -35r + -20r = -75

Combine like terms: -35r + -20r = -55r
-20 + -55r = -75

Solving
-20 + -55r = -75

Solving for variable 'r'.

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

Add '20' to each side of the equation.
-20 + 20 + -55r = -75 + 20

Combine like terms: -20 + 20 = 0
0 + -55r = -75 + 20
-55r = -75 + 20

Combine like terms: -75 + 20 = -55
-55r = -55

Divide each side by '-55'.
r = 1

Simplifying
r = 1

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