Question

9x-10y=-12 2x+3y=13 by substitution method​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

The value of x is 2 and y is 3.

Given,

Two linear equations in two variables 9x-10y=-12 and 2x+3y=13.

To Find,

The value of x and y using the substitution method.

Solution,

The given linear equations are

2x+3y=13

x = (13-3y)/2

Now, substituting the value of x in 9x-10y=-12.

9(13-3y)/2-10y = -12

117-27y-20y = -24

-47y = -24-117

47y = 141

y = 3

Now, substituting the value of y in x = (13-3y)/2

x = (13-3(3))/2

x = (13-9)/2 = 4/2 = 2

Hence, the value of x is 2 and y is 3.

#SPJ3