7+5(1+7r)=-30-7r

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Solution for 7+5(1+7r)=-30-7r equation:


Simplifying
7 + 5(1 + 7r) = -30 + -7r
7 + (1 * 5 + 7r * 5) = -30 + -7r
7 + (5 + 35r) = -30 + -7r

Combine like terms: 7 + 5 = 12
12 + 35r = -30 + -7r

Solving
12 + 35r = -30 + -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.
12 + 35r + 7r = -30 + -7r + 7r

Combine like terms: 35r + 7r = 42r
12 + 42r = -30 + -7r + 7r

Combine like terms: -7r + 7r = 0
12 + 42r = -30 + 0
12 + 42r = -30

Add '-12' to each side of the equation.
12 + -12 + 42r = -30 + -12

Combine like terms: 12 + -12 = 0
0 + 42r = -30 + -12
42r = -30 + -12

Combine like terms: -30 + -12 = -42
42r = -42

Divide each side by '42'.
r = -1

Simplifying
r = -1

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