4+7(r+8)=109

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Solution for 4+7(r+8)=109 equation:


Simplifying
4 + 7(r + 8) = 109

Reorder the terms:
4 + 7(8 + r) = 109
4 + (8 * 7 + r * 7) = 109
4 + (56 + 7r) = 109

Combine like terms: 4 + 56 = 60
60 + 7r = 109

Solving
60 + 7r = 109

Solving for variable 'r'.

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

Add '-60' to each side of the equation.
60 + -60 + 7r = 109 + -60

Combine like terms: 60 + -60 = 0
0 + 7r = 109 + -60
7r = 109 + -60

Combine like terms: 109 + -60 = 49
7r = 49

Divide each side by '7'.
r = 7

Simplifying
r = 7

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