2 years ago

If a + b = 6 and a - b = 4, What is the value of 2a + 3b?

Mathematics

2 answers:

tangare [24]2 years ago

4 0

The value of 2a + 3b is 13

Luden [163]2 years ago

3 0

Answer:

Step-by-step explanation:

a + b = 6 and a - b = 4

Add the two equations together

a + b = 6

a - b = 4

----------------

2a = 10

Subtract the two equations

a + b = 6

- a + b = -4

----------------

2b = 2

b =1

Multiply by 3

3b =3

2a +3b

we know 2a = 10 and 3b = 3

10+3

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