Question

3x+2y=12
x-3y= -7

by substitution method​

Answer 1

3x+2y=12 eq.(1)

x-3y=-7 eq.(2)

x= 3y+7 eq.(3), substitute in (1)

3(3y-7)+2y=12

9y-21+2y=12

11y=33

y=3 substitute in (3)

x=16.

please mark as BRAINLIEST.

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Answer 2

Answer:

3x+2y=12-(1)

x-3y=-7-(2)

(1)*1-(2)*3

3x+2y=12

-

3x-9y=-21

_________

11y=33

__________

y=3

then

substitute y=3 in (1) or (2)

then

x-3(3)=-7

x-9=-7

x=-7+9

x=2

x=2, y=3. are the values