ok well the answer i got to was y= -4.5, i came to that by subtsituting in 5 for the x value and solving for y i assumed everything was adding together since you didnt say otherwise. ill show my work now 3(5)+6y+12 =15+6y+12 =27+6y -27/6=6y/6 y=-4.5
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y-3x+6y=12 7y=3x+12 y=3x/7 +12/7
3x-6y=12; subtract 12 & add 6y to both sides 3x-12=6y; divide by 6 (1/2)x-2=y; re-write y=(1/2)x-2 slope intercept form
Well, darling, 3x plus 6y plus 6x simplifies to 9x + 6y. That's all there is to it, sugar. Math doesn't have to be complicated, just like your love life!
2X + 6Y = 12 3X + 9Y = 18 try elimination - 3(2X + 6Y = 12) 2(3X + 9Y = 18) - 6X - 18Y = - 36 6X + 18Y = 36 ================= I will say this system is dependent and an infinite number of solutions can be found.
If: 6y-3x = 18 Then: y = 0.5x+3 which is in slope-intercept form