1-5r=-1+4r-7r

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Solution for 1-5r=-1+4r-7r equation:


Simplifying
1 + -5r = -1 + 4r + -7r

Combine like terms: 4r + -7r = -3r
1 + -5r = -1 + -3r

Solving
1 + -5r = -1 + -3r

Solving for variable 'r'.

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

Add '3r' to each side of the equation.
1 + -5r + 3r = -1 + -3r + 3r

Combine like terms: -5r + 3r = -2r
1 + -2r = -1 + -3r + 3r

Combine like terms: -3r + 3r = 0
1 + -2r = -1 + 0
1 + -2r = -1

Add '-1' to each side of the equation.
1 + -1 + -2r = -1 + -1

Combine like terms: 1 + -1 = 0
0 + -2r = -1 + -1
-2r = -1 + -1

Combine like terms: -1 + -1 = -2
-2r = -2

Divide each side by '-2'.
r = 1

Simplifying
r = 1

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