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3 years ago

I need help! 30 points! Will mark brainliest! I'm giving up my rank for this answer! Please!

Mathematics

2 answers:

maria [59]3 years ago

6 0

Answer:

a=-7.5 cant believe I forgot about distribution :/.

Step-by-step explanation:

add 3 to -3, then do it to the other side 12+3=15, (-2a=15) divide -2a by -2 and it becomes just a, then you divide 15 by -2, 15/-2=-7.5.

Sedaia [141]3 years ago

5 0

Answer: a = -3

Step-by-step explanation: First we distribute the -2 to a and -3 to get -2a+6=12, then subtract 6 on both sides, -2a=6, finally divide by -2 on each side to get a = -3.

Hope this helps!

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