7r+3=42r+10

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Solution for 7r+3=42r+10 equation:


Simplifying
7r + 3 = 42r + 10

Reorder the terms:
3 + 7r = 42r + 10

Reorder the terms:
3 + 7r = 10 + 42r

Solving
3 + 7r = 10 + 42r

Solving for variable 'r'.

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

Add '-42r' to each side of the equation.
3 + 7r + -42r = 10 + 42r + -42r

Combine like terms: 7r + -42r = -35r
3 + -35r = 10 + 42r + -42r

Combine like terms: 42r + -42r = 0
3 + -35r = 10 + 0
3 + -35r = 10

Add '-3' to each side of the equation.
3 + -3 + -35r = 10 + -3

Combine like terms: 3 + -3 = 0
0 + -35r = 10 + -3
-35r = 10 + -3

Combine like terms: 10 + -3 = 7
-35r = 7

Divide each side by '-35'.
r = -0.2

Simplifying
r = -0.2

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