Question

a + 3b = 5
7a - 8b = 6 by substitution method​

Answer 1

Answer:

b = 1 and a = 2

Step-by-step explanation:

I hope this answer will help you and you understand this answer.

Answer 2

Step-by-step explanation:

a + 3b = 5

a=5-3b ---------eq.1

7a-8b=6 ----------eq.2

substitute the value of a in eq.2

7a-8b=6

7(5-3b)-8b=6

35-21b-8b=6

35-29b=6

-29b=6-35

-29b=-29

b=1

substitute the value of B in eq 1

a=5-3b

a=5-3(1)

a=5-3

a=2