9
5x - 4 = 3x + 6 5x - 3x = 6 + 4 2x = 10 x = 5
y = 3x + y => x = 0then y = x - 9 => y = 0 - 9 = -9.
If: 3x-3 = 7x+21 Then: x = -6
y = 12. It's the transitive property. y = 12 = 3x.
-3x+14 = -4 -3x = -4-14 -3x = -18 x = 6
If 3x - 9 = -6 then 3x must equal 3. Therefore x = 1 !
3x=18 x=18/3 x=6
3x = x + 4 x = 2 3x2=6 2+4=6
x = 4 and y = 6
First of all, if 'x' is 3, then 'x' doesn't equal -3x+3 . You must mean y = -3x + 3.If x=3, then (-3x + 3) = -6 .The graph is the point (3, -6) .
3x + 7 = -3x 6x = -7 x = -7/6
X= -2 ! Since the equation must equal zero - 17+3x must equal 11. The variable 3x HAS to equal -6... therefore x is equal to minus 2.
3x+12 = 18 3x = 18-12 3x = 6 x = 2
3x-4x=12 that means -x equals 12 so x equals -12
x = 6
3x + 6 = x - 10; subtract (x + 6) from each side to result in 2x = - 16; divide each side by 2 to result in x = -8.
If x equals 8, then 3x equals 24. 24-x would equal 16.