5x + 4 = 3x - 2Subtract 4 from both sides:5x = 3x - 6Subtract 2x from both sides:2x = 6Divide both sides by 2:x = -3
8x-4 = -7+5x 8x-5x = -7+4 3x = -3 x = -1
5x - 3y -7x + 2y +3x = (5-7+3)x + (-3+2)y = x - y
So you have the problem 7 + 3x = 5x + 13you need to get all the x's to one side and all constants "like 7" to the other side.So from the left side, subtract 7 from that side but then subtract it from the 13 on the other side.Now you get 3x = 5x + 6Now subtract the 5x from the right side and from the left side.Now you get -2x = 6Divide the -2 from the x and from the 6 on the right side.Now you get x = -3
if you meant 5x+9=3*15 then, 5x = 36, x = 7.2 if you meant 5x+9=3x+15 then, 2x = 6, x = 3
If: 3x-7 = 5x+13 Then: x = -10
The value of x is: x=7/8. Work: 5x-3=4-3x +3 +3 ________ 5x=7-3x +3x +3x ________ 8x=7 /8 /8 ________ x=7/8
3x + 7 = 5x + 13 3x - 5x = 13 - 7 -2x = 6 -x = 3 x = -3
3x+7=5x-13 ----> 3x-5x=-13-7 ----> -2x=-6 -----> x=3
5x+7=3x-21 -7= -7 5x=3x-14 -3x=-3x 2x=-14 2x/2x=2x/-14 x=-7 The Answer Is -7 -
5x + 7 = 3x - 5 Subtract 3x from both sides: 2x + 7 = -5 Subtract 7 from both sides: 2x = -12 Divide both sides by 2: x = -6
2x minus 3x is equal to -x.
3x+5x-2x = 24 6x = 24 x = 4
f(x)=5x, g(x)=3x-7 gf(x)= = g(f(x)) = g(5x) = 3*(5x) - 7 = 15x-7 So gf(4) = 15*4-7=53
If: 3x+8-x = 5x-4 Then: x = 4
3x - 5x + x = -x
If: 3x+2y = 5x+2y = 7 which is the same as 7 = 7 = 7 Then: 3x+2y = 7 and 5x+2y = 7 Subtracting equations: x = 0 Therefore by substitution: x = 0 and y = 3.5