Question

solve for a and b if a-b=11 and 4a-2b=-18
please show the steps.​

Answer 1

Explanation:

let a-b=11 be eqn no. 1

multiplying [1] ×2

2a-2b=22

4a-2b=-18(subtracting)

-2 a= 40

a= -20

substituting in (1)

-20-b=11

b=-31