3(4)=r

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Solution for 3(4)=r equation:


Simplifying
3(4) = r

Multiply 3 * 4
12 = r

Solving
12 = r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
12 + -1r = r + -1r

Combine like terms: r + -1r = 0
12 + -1r = 0

Add '-12' to each side of the equation.
12 + -12 + -1r = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -1r = 0 + -12
-1r = 0 + -12

Combine like terms: 0 + -12 = -12
-1r = -12

Divide each side by '-1'.
r = 12

Simplifying
r = 12

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