4s+2-5r+s-7=

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Solution for 4s+2-5r+s-7= equation:


Simplifying
4s + 2 + -5r + s + -7 = 0

Reorder the terms:
2 + -7 + -5r + 4s + s = 0

Combine like terms: 2 + -7 = -5
-5 + -5r + 4s + s = 0

Combine like terms: 4s + s = 5s
-5 + -5r + 5s = 0

Solving
-5 + -5r + 5s = 0

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 + -5r + 5 + 5s = 0 + 5

Reorder the terms:
-5 + 5 + -5r + 5s = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -5r + 5s = 0 + 5
-5r + 5s = 0 + 5

Combine like terms: 0 + 5 = 5
-5r + 5s = 5

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

Combine like terms: 5s + -5s = 0
-5r + 0 = 5 + -5s
-5r = 5 + -5s

Divide each side by '-5'.
r = -1 + s

Simplifying
r = -1 + s

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