Question

3= |x |/12 +3

Answer 1

\[x=45\]\[3\times15=x\]\[3=x \div15\]\[3=x \div12+3\]

Answer 2

Assuming your question is:\[3=\frac{|x|}{12+3}\]then you would first add the 12 and 3 in the denominator to get 15, giving you:\[3=\frac{|x|}{15}\]next, to get rid of the 15 in the denominator, multiply both sides by 15 to get:\[45=|x|\]
now, do you know what |x| means?

Answer 3

x = -45
x = 45

Answer 4

because |-45| = 45 and |45| = 45