3 years ago

Two equations are given below:

Mathematics

2 answers:

stealth61 [152]3 years ago

8 0

a is given to us so just plug a into the first equation:

b-3 - 3b =9

Add 3 to both sides:

b-3b=12

Combine like terms:

-2b=12

Divide by -2 to get b by itself:

b=-6

The only answer with b as -6 is the first one, (-9,-6)

Anit [1.1K]3 years ago

7 0

The first one, (-9,-6) because if you were to plug it in the answers would equal therefore, the equation is true.

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