bonnieswirl1 bonnieswirl1

27-02-2018
Mathematics

contestada

Suppose a + b = 2a.
Which one of these expressions equals b - a?

a. 2b
b. -b^2
c. a - b
d. 2a
e. -2b

WILL GIVE BRAINLIEST ANSWER! (If it is right).

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jerichsen jerichsen

27-02-2018

Assume a is 6. So 2a is 12, so b has to be the same as a. So b - a should be c, the only one that makes the answer 0.

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