Question

metodo de sustitucion
5a+b=8
3a-4b=14

Answer 1

b= 8-5a

3a-4(8-5a)= 14
3a-32+20a=14
3a+20a = 14+32
23a = 46
a= $\frac{46}{23}$
a= 2
b= -2