Question

solve: 4a+ 3b=18; 3a-2b= 5​

Answer 1

Explanation:

3(4a +3b)=18

4(3a-2b)=5

12a+9b=54

+12a-8b=+20 (Change Signs)

- + -

17b=34

b= 34/17

b= 2

Put b value in equation (1)

4a + 3(2)=18

4a + 6 = 18

4a = 18-6

4a= 12

a= 12/4

a= 3