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If 3a − c = 5b and 3a + 3b − c = 40, what is the value of b?
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1 vote
If 3a − c = 5b and 3a + 3b − c = 40, what is the value of b?

User Dew Time
by
5.4k points

1 Answer

2 votes

Answer:

b = 5

Step-by-step explanation:

add both of the equations together

3a - c = 5b

3a + 3b - c = 40

= 3b = 40 - 5b

then make it equal to 40 meaning

8b = 40

b = 5

User Assaf Lavie
by
4.9k points
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