HELP ?? EXPLAIN????????

-6 = a + a + 4

36 = y - 5y - 12

16 = 2(x - 1) - x

8 - 3(x - 4) = 4

how do you do all of these?? explain as many as you can

-6=a+a+4, combine the a's
-6=2a+4, subtract 4 from each side
-6-4=2a+4-4
-10=2a, divide both sides by two and you get a
a=-10/2=-5

36=y-5y-12, add twelve to both sides
36+12=y-5y-12+12, combine the y's
48=-4y, divide both sides by -4 and you get y
y=48/-4=-12

16=2(x-1)-x, use the distributive property for the 2(x-1)
16=2x-2-x, combine the x's and add two to both sides
16+2=(2x-x)-2+2, simplify everything and you get x
18=x

8-3(x-4)=4, use the distributive property for the 3(x-4)
8-3x-4*3=4, simplify, do 4*3=12
8-3x-12=4, subtract 8-12
(8-12)-3x=4
-4-3x=4, add 4 to both sides
-3x=8, divide both sides by -3
x=-8/3, approximately -2.67

i hope this helps!!

Are you solving for the variables?

Are you solving for the variables?