-6(2+5r)+7=-155

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Solution for -6(2+5r)+7=-155 equation:


Simplifying
-6(2 + 5r) + 7 = -155
(2 * -6 + 5r * -6) + 7 = -155
(-12 + -30r) + 7 = -155

Reorder the terms:
-12 + 7 + -30r = -155

Combine like terms: -12 + 7 = -5
-5 + -30r = -155

Solving
-5 + -30r = -155

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + -30r = -155 + 5

Combine like terms: -5 + 5 = 0
0 + -30r = -155 + 5
-30r = -155 + 5

Combine like terms: -155 + 5 = -150
-30r = -150

Divide each side by '-30'.
r = 5

Simplifying
r = 5

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