10(4r-r+1)=220

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Solution for 10(4r-r+1)=220 equation:


Simplifying
10(4r + -1r + 1) = 220

Reorder the terms:
10(1 + 4r + -1r) = 220

Combine like terms: 4r + -1r = 3r
10(1 + 3r) = 220
(1 * 10 + 3r * 10) = 220
(10 + 30r) = 220

Solving
10 + 30r = 220

Solving for variable 'r'.

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

Add '-10' to each side of the equation.
10 + -10 + 30r = 220 + -10

Combine like terms: 10 + -10 = 0
0 + 30r = 220 + -10
30r = 220 + -10

Combine like terms: 220 + -10 = 210
30r = 210

Divide each side by '30'.
r = 7

Simplifying
r = 7

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