Question

Resolver por el método de igualación

3x + 2y = 7
4x - 3y = 15

Answer 1

X=7-2y/3
X=15+3y/4

4(7-2y)=3(15+3y)
28-8y=45+9y
-8y-9y=45-28
-17y=17
Y=17/-17
Y=-1

X=7-2y/3
X=7-2•(-1)/3
X=7+2/3
X=9/3
X=3

X=3
Y=-1