-7+21(1+5r)=-34

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Solution for -7+21(1+5r)=-34 equation:


Simplifying
-7 + 21(1 + 5r) = -34
-7 + (1 * 21 + 5r * 21) = -34
-7 + (21 + 105r) = -34

Combine like terms: -7 + 21 = 14
14 + 105r = -34

Solving
14 + 105r = -34

Solving for variable 'r'.

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

Add '-14' to each side of the equation.
14 + -14 + 105r = -34 + -14

Combine like terms: 14 + -14 = 0
0 + 105r = -34 + -14
105r = -34 + -14

Combine like terms: -34 + -14 = -48
105r = -48

Divide each side by '105'.
r = -0.4571428571

Simplifying
r = -0.4571428571

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