Answer:
x=18
Step-by-step explanation:
You can rewrite ratios as fractions in problems like these to solve for a variable x:
21/2x=7/12
Cross multiply so that there are whole numbers rather than fractions:
21*12=2x*7
Simplify and solve for x:
252=14x
x=252/14
x=18
please tell me if im wrong or if my explanation doesn't make sense, hope this helps!!
