Question

solve 2x-3y=7;5x+y=9 by method of eliminated by equation the coefficient​

Answer 1

Answer:

X = 2 and y = -1 .

See below explanation .

Step-by-step explanation:

Let 2x-3y=7---eq1

And Let 5x+y=9---eq2

eq1 + 3(eq2)

2x-3y+3(5x+y)=7+(3*9)

2x-3y+15x+3y=7+27

15x+2x=34(plus 3y and -3y get cancel )

17x=34

X=34/17

X=2 -----eq 3

• BY PUTTING eq3 IN eq1 WE CAN GET y value

2x-3y=7

by putting x value

2(2) - 3y =7

4-3y =7

-3y = 7-4

-3y =3

y=3/-3

y= -1.

SO X Value is 2 and y values -1

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