2x+4 = -16 2x = -16-4 2x = -20 x = -10
2x + 4 = 10 2x = 10 - 4 = 6 2x = 6 x = 6/2 = 3
2x + 4 = y ...............2x + 4 = y ....................2x + 4 = y .............2*(-6)+ 4 = y x - y = 2 .......<=> ...x - 2x - 4 = 2 .....<=> ...x = -6......... <=>.... x = -6 ..............<=> y = - 8 x = - 6
7x + 4 = 2x + 5Subtract 4 from each side of the equation:7x = 2x + 1Subtract 2x from each side:5x = 1Divide each side by 5:x = 1/5 = 0.2
X=7
2x+4 = -16 2x = -16-4 2x = -20 x = -10
2x + 7 + 2x = 23 4x + 7 = 23 4x = 16 x = 16/4 x = 4
4
x=3
2x2=4x4=16
2x + 4 = 362x = 36 - 42x = 32x = 32/2X = 16
(4 + 2x) - (-2x + 1) = 13 + 6 4 + 2x + 2x -1 = 19 4x +3 = 19 4x = 19 - 3 4x = 16 therefore x = 16/4 x = 4
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
x= 2 because 2x+4=16 4x2=8 8+2 or 8x2=16
x equals 4
If x=4 then 2x+7 =
y=16 x= -4