-3(7r+8)=100

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Solution for -3(7r+8)=100 equation:


Simplifying
-3(7r + 8) = 100

Reorder the terms:
-3(8 + 7r) = 100
(8 * -3 + 7r * -3) = 100
(-24 + -21r) = 100

Solving
-24 + -21r = 100

Solving for variable 'r'.

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

Add '24' to each side of the equation.
-24 + 24 + -21r = 100 + 24

Combine like terms: -24 + 24 = 0
0 + -21r = 100 + 24
-21r = 100 + 24

Combine like terms: 100 + 24 = 124
-21r = 124

Divide each side by '-21'.
r = -5.904761905

Simplifying
r = -5.904761905

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