Answer:
A) 5
Step-by-step explanation:
Since ABC and DEF are equal they will have the sum, you'll wanna plug in the numbers into the x spots on DEF. So instead of 4x-2, try 4(5)-2.
D and F:
4(5) = 20
20 - 2 = 18
A and C also equal 18
I hope this helps,
