7x-8y=-12 ....(*)
4x-2y=-3........(**)
------------------------
Form (**)
-2y=-(3+4x)
Y=(3+4x)/2......(#)
Plug (#) into (*)
7x-8(3+4x)/2=-12
7x-4(3+4x)=-24
7x-12-16x=-24
-9x-12=-24
9x+12=24
3x+4=8
x=4/3
Put x into any of the equation above you would get y
7x-8y=-12 ; -4x+2y=3
2 answers
Just spotted typo
Am sorry typing maths with my smartphone isn't easy for me
When you plug (#) into (*)
Go with this
7x-4(3+4x)=-12
7x-12-16x=-12
-9x-12=-12
9x+12=12
3x+4=4
X=0
Am sorry typing maths with my smartphone isn't easy for me
When you plug (#) into (*)
Go with this
7x-4(3+4x)=-12
7x-12-16x=-12
-9x-12=-12
9x+12=12
3x+4=4
X=0