Question

Please help me..I don't understand how to solve problems like
4y+2x=18 find y
Can someone help me understand?
*I made that problem up I do not know if it works*

Answer 1

Okay. So first you subtract 2x from each side. That will give you 4y= -2x+18 (you want to get y by itself). Then you divide both sides by 4. It should equal> y= 1/2x +9/2

Answer 2

remember you can do ANYTHING to an equation as long as you do it to both sides

isolate the y and then divide by the coefient
the basic way to simplify it is if you did
ax+by=c
y=$\frac{-a}{b}x+ \frac{c}{b}$

but memorization is no fun so



4y+2x=18
minus 2x both sides
4y=-2x+18
divide both sides by 4
$y= \frac{-1}{2}x+ \frac{9}{2}$