-7r+3(r-5)=1

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Solution for -7r+3(r-5)=1 equation: 


Simplifying
-7r + 3(r + -5) = 1

Reorder the terms:
-7r + 3(-5 + r) = 1
-7r + (-5 * 3 + r * 3) = 1
-7r + (-15 + 3r) = 1

Reorder the terms:
-15 + -7r + 3r = 1

Combine like terms: -7r + 3r = -4r
-15 + -4r = 1

Solving
-15 + -4r = 1

Solving for variable 'r'.

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

Add '15' to each side of the equation.
-15 + 15 + -4r = 1 + 15

Combine like terms: -15 + 15 = 0
0 + -4r = 1 + 15
-4r = 1 + 15

Combine like terms: 1 + 15 = 16
-4r = 16

Divide each side by '-4'.
r = -4

Simplifying
r = -4

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