Question

solve with substitution method 3x-2y=-1, x+3y=7

Answer 1

hey mate here's your answer
(x,y)=(1,2) is the solution for the above equation

Answer 2

Answer:

The value of x is 1 and y is 2.

Step-by-step explanation:

Given equations:-

$3x-2y=-1$     $...(i)$

$x+3y=7$         $...(ii)$

Now, multiply the equation ( ii ) by 3,

$=> 3x +9y =21$     $...(iii)$

Subtracting equation ( iii ) by ( i ) we get,

$=> 11y =22$

Divide both the sides by $11$, we get

$=> y = 2$

So, the value of y is 2.

Now, put the value of y as 2 in the equation ( iii ), we get

$=> 3x+ 9y=21$

$=> 3x+9(2)=21$

Multiply the numbers, we get

$=> 3x + 18=21$

$=> 3x = 21-18\\=> 3x = 3$

Divide both the sides by $3$, we get

$=> x = 1$

So, the value of x is 1.