2x+4x=20 fiirst add the 2x and the 4x then u get
6x=20 Now you divide the six by both sides to cancel out the multiplacation on the left
/6 /6
x=20
/6 now we simplifly the 20 over 6 to 10
/3
so x is 10 over 3
4x+2y = 20 2y = -4x+20 y = -2x+10
4x-15=6x-4x 4x-22.4=2x 2x=22.4 x=11.2
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2
4x-5y+20 = 0 -5y = -4x-20 y = 4/5x+4 which is now in slope intercept form
2
4x =20x=20/4x=5
5x + 20 = 4x +30 5x - 4x = 30 - 20 x = 10
If: 4x+(-12) = 8 then 4x = 20 and x = 5
4x+2y = 20 2y = -4x+20 y = -2x+10
x = 10
x=3
-20 = -4x +6 add 20 to both sides 0 = -4x +26 4x = 26 x = 26/4 = 6.5
4x-15=6x-4x 4x-22.4=2x 2x=22.4 x=11.2
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2
4x-5y+20 = 0 -5y = -4x-20 y = 4/5x+4 which is now in slope intercept form
4x+4y=16 y=5 4x+ 20=16 4x=-4 x=-1
2