7=r+3-5r

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Solution for 7=r+3-5r equation:


Simplifying
7 = r + 3 + -5r

Reorder the terms:
7 = 3 + r + -5r

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

Solving
7 = 3 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
7 + 4r = 3 + -4r + 4r

Combine like terms: -4r + 4r = 0
7 + 4r = 3 + 0
7 + 4r = 3

Add '-7' to each side of the equation.
7 + -7 + 4r = 3 + -7

Combine like terms: 7 + -7 = 0
0 + 4r = 3 + -7
4r = 3 + -7

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

Divide each side by '4'.
r = -1

Simplifying
r = -1

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