Question

solve for x 31=12+1/2x

Answer 1

Answer:

x = 38

Explanation:

First step is to subtract 12 from both sides:

$31=12+\frac{1}{2}x$$31-12=12+\frac{1}{2}x-12$$31-12=\frac{1}{2}x$$19=\frac{1}{2}x$

Finally, multiplying both sides by 2 gives

$2\cdot19=\frac{1}{2}x\cdot2$$38=x$

Hence, the value of x is 38.