Question

por favor ayundeme a resolver un ejercicio d matematicas de sistma de ecyuaciones por sustitucion
5x-8y=-13
2x-3y=-4

Answer 1

5x-8y=-13
2x-3y=-4

5x-8y=-13
5x=-13+8y
x=(-13+8y)/5

2[(13+8)/5]-3y=-4
2(-13/5+8/5y)-3y=-4
-26/5+16/5y-3y=-4
-26/5+1/5y=-4
1/5y=-4+26/5
1/5y=6/5
y= (6/5)/(1/5)
y=6

5x-8(6)=-13
5x-48=-13
5x= -13+48
5x= 35
x=35/5
x=7