84=7(r+5)

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Solution for 84=7(r+5) equation:


Simplifying
84 = 7(r + 5)

Reorder the terms:
84 = 7(5 + r)
84 = (5 * 7 + r * 7)
84 = (35 + 7r)

Solving
84 = 35 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
84 + -7r = 35 + 7r + -7r

Combine like terms: 7r + -7r = 0
84 + -7r = 35 + 0
84 + -7r = 35

Add '-84' to each side of the equation.
84 + -84 + -7r = 35 + -84

Combine like terms: 84 + -84 = 0
0 + -7r = 35 + -84
-7r = 35 + -84

Combine like terms: 35 + -84 = -49
-7r = -49

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

Simplifying
r = 7

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