Solve 1.2=3a+5.1

$$1.2 = 3 a + 5.1$$

Solve for a

$$a=-1.3$$

Steps for Solving Linear Equation

Swap sides so that all variable terms are on the left hand side.

$$3a+5.1=1.2$$

Subtract 5.1 from both sides.

$$3a=1.2-5.1$$

Subtract 5.1 from 1.2 to get -3.9.

$$3a=-3.9$$

Divide both sides by 3.

$$a=\frac{-3.9}{3}$$

Expand \frac{-3.9}{3} by multiplying both numerator and the denominator by 10.

$$a=\frac{-39}{30}$$

Reduce the fraction \frac{-39}{30} to lowest terms by extracting and canceling out 3.

$$a=-\frac{13}{10}$$