How do you solve $\frac{3}{9} (x + 6) = 12$ $\frac { 3} { 9} ( x + 6) = 12$ ?

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Answer 1 · 2017-10-15T23:50:36

$x = 30$ $x=30$

Begin by multiplying both sides by $\frac{9}{3}$ $9/3$ , the reciprocal of $\frac{3}{9}$ $3/9$ to cancel the fraction on the left.

$(cancel9/cancel3)(cancel3/cancel9)(x+6)=12(9/3)$

Simplifying gives

$x+6=36$

Subtract 6 from both sides to get

$x=30$

(At the beginning you also could have simplified $3/9$ to $1/3$ to make the problem a bit easier)

How do you solve \frac { 3} { 9} ( x + 6) = 1239(x+6)=12\frac { 3} { 9} ( x + 6) = 12?