144k views
2 votes
-3a+6b=a+4b I need to solve this please.

User Wau
by
6.6k points

1 Answer

4 votes

Answer:

a*2=b

Or

a=0, b=0

Explanation:

if a=0 and b=0, then 0=0, it'd be correct, but I'm sure that's not the answer they intend you to pick. You should still put that as one of the answers, however.

-3a+6b=a+4b

+3a +3a

6b=4a+4b

-6b -6b

0=4a-2b

/2 /2 /2

0=2a-b

so, we now know that b is twice the amount that a is, and actually, that's the solution for the entire thing.

So, the answer is a*2=b, because the equation works for any set of numbers, as long as it follows this rule.

User Clay Risser
by
6.9k points
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