-3
-17
that's impossible
This is not Calculus.y=7(Already solved)substiute y=7 into y=8xtherefore 7 = 8xtherefore x = 7/8
5x+y=-7 3x+y=15 8=D
-3
y=7+x =x=7-x
y= -4x-7 y=3x 3x= -4x-7 3x+4x=7 7x=7 x=1
-17
that's impossible
This is not Calculus.y=7(Already solved)substiute y=7 into y=8xtherefore 7 = 8xtherefore x = 7/8
5x+y=-7 3x+y=15 8=D
3/Y+7\Y=9 =>Y=10\9
x=4 y=x+3 y=4+3 y=7
y = 3, 6
You can solve that equation for either x or y. To solve for y: Subtract 9x from both sides to get -4y=7-9x Divide both sides by -4 to get y=-(7-9x)/4 or -1.75+2.25x
4y + 7 = 19 ∴ 4y = 12 ∴ y = 3