a is equivalent to 18.
2(42 - a) = 48
2(42) + 2(-a) = 48 *distributive property of multiplication
84 - 2a = 48
-2a = 48 - 84
-2a = -36
-2a/-2 = -36/-2
a = 18
to check:
2(42-a) = 48
2(42-18) = 48
2(24) = 48
48 = 48
The ratio that isn’t equivalent to the others is 10/12 because 7/8 and 21/24 are equivalent to eachother
Answer:
option A- if the line is moved the measure of angle 8 would increase
The answer is -4. your welcome.
