# HOW DO YOU DO THIS?!?!?!

#### emmaiskool242

##### Junior Member
2-1/4(b-12)=9FRACTIONS SCARE ME

#### daon

##### Senior Member
emmaiskool242 said:
2-1/4(b-12)=9FRACTIONS SCARE ME
Then get rid of the fraction by multiplying both sides of the equation by 4.

$$\displaystyle 2 - \frac{1}{4}(b-12) = 9 \\ \Rightarrow 4(2 - \frac{1}{4}(b-12)) = 4(9) \Rightarrow 4(2) - 4(\frac{1}{4})(b-12) = 36\\ \Rightarrow 8 - \frac{4}{4}(b-12) = 36 \Rightarrow 8 - (b-12) = 36$$