39 - 7y = 18,-7y = 18 - 39-7y = -21-7y/-7 = -21/-7y = 3
If you mean: 32-10x+7y = 0 then as a straight line equation it is 7y = 10x-32
7y+5=-9... 7y must equal -14 therefore y must be -2
18=39-7y minus 18 from both sides (0=21-7y) subtract 21 from both sides to get the variable and the number on opposite sides -21=-7y -21/-7y= ____ y= ___
That depends what you want it to equal at the end.
8y - 38
3y=7y+24.4 First, try to get all the y-terms on the same side of the equation. Easily done here by subtracting 7y from both sides 3y-7y=7y-7y+24.4 -4y=24.4 Now divide by -4 -4y/-4=24.4/-4 y=-6.1
OK:7y-6=87y+6-6=8+67y = 14y = 2.Y is equal to 2. Hope this helps!
y=-9 7y-2=14y+61 7y-2-7y=14y+61-7y -2=7y+61 -2-61=7y+61-61 -63=7y -63/7=7y/7 -9=y
4X2+X3+3X+7Y+2X3 can only be simplified to 3X3+4X2+3X+7Y, because X3 and 2X3 are the only like terms.
a + 7y
16+7y-8 = 7y+16-8 = 7y+8