7=10-3r

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Solution for 7=10-3r equation:


Simplifying
7 = 10 + -3r

Solving
7 = 10 + -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.
7 + 3r = 10 + -3r + 3r

Combine like terms: -3r + 3r = 0
7 + 3r = 10 + 0
7 + 3r = 10

Add '-7' to each side of the equation.
7 + -7 + 3r = 10 + -7

Combine like terms: 7 + -7 = 0
0 + 3r = 10 + -7
3r = 10 + -7

Combine like terms: 10 + -7 = 3
3r = 3

Divide each side by '3'.
r = 1

Simplifying
r = 1

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