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4 years ago

9

Help, please! Solve 2a + 3b = 5 b = a - 5

2 answers:

Ahat [919]4 years ago

8 0

Answer: A = 4, B = -1

Step-by-step explanation: First, you write the equation out and substitute in a - 5 for b. Then you distribute the 3 to the a and the -5 to get "2a + 3a - 15". Then you add the 15 to both sides, and add the 2a and the 3a to get "5a = 20" Then you multiply by 5 to get a = 4. And if you're trying to find b you just do 4 - 5 to get -1.

damaskus [11]4 years ago

7 0

Answer:

a=2

Step-by-step explanation:

a=b+5

b=a−5

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3 years ago

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