Question

a - 2b = 4
2a = 1-3b
metodo de reducion​

Answer 1

a-2b=4

2a+3b=1

-2(a-2b=4)

1(2a+3b=1)

-2a+4b=-8

2a+3b=1

0 +7b=-7

b=-1

a-2(-1)=4

a+2=4

a=4-2

a=2