Question

What is the value of x and y

Answer 1

Answer:

x=3, y=3

Step-by-step explanation:

If we plug in 3 for each variable, their sum is 6, and the first equation will be true.

Answer 2

Answer:

$x=y=3$

Step-by-step explanation:

Given Equation:

$2x+3y=15$   Equation:1

$x+y=6$        

or $x=6-y$      Equation:2

Using Substitution method, put the value of 'x' in equation:1

$2x+3y=15$

$2(6-y)+3y=15\\\\2(6)-2(y)+3y=15\\\\12-2y+3y=15\\\\12+y=15$

Subtracting '12' both sides:

$12+y-12=15-12\\\\y=15-12\\\\y=3$

Putting value of 'y' in equation:2

$x=6-y$

$x=6-3\\\\x=3$

So, the values are:   $x=y=3$