Question

if 2x + 3y = 12 and 3x - 2y = 5 then​

Answer 1

Step-by-step explanation:

i did the problem in substitution method.

1st the 2 equations after that substituting a variable in an equation after that the value i found substituted in another equation

and finally found both the variables. That is x and y. (the numbers i mentioned in braces are equation numbers.)

hope this helps you.

Answer 2

Answer:

2x+3y=12

2x=12-3y

x=12-3y/2(eq.-1)

3x-2y=5(eq.-2)

put value of x from eq.1 into 2,

3(12-3y/2)-2y=5

so,by taking L.C.M and by cross multiply in next step we get,

36-9y-4y=10

-13y=-26

y=2

put value of y in eq. 2

3x-2y=5

3x-2×2=5

3x=9

x=3