3 years ago

What is 2a+3b=5 B=a-5?

Mathematics

1 answer:

galben [10]3 years ago

4 0

Answer:

a = 4

Step-by-step explanation:

Plug in the b-value which is a-5 into the equation to make it look like this, 2a + 3(a - 5) = 5. Then, distribute 3 into a - 5 to get 3a - 15 when expanded. Combine the two like terms 2a and 3a to get 5a. Then, add 15 on both sides to get to this equation which is 5a = 20. Divide 5 on both sides to get your a-value which is 4.

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