3x = 39
x = 13
X = -2(13 + y) / 3x = 5y / 4 - 1
13-3x = 43 -3x = 43-13 -3x = 30 x = -10
3x - 12 = 10x - 15 - 6x -10 3x - 12 = 4x -25 3x + 13 = 4x 13 = 4x - 3x 13 = x None?
3x+5 = 2x+13 3x-2x = 13-5 x = 8
2x+3y=13 3x-y=3 x=2
3x+7=5x-13 ----> 3x-5x=-13-7 ----> -2x=-6 -----> x=3
yes
In the equation 3x plus 7 equals 13, x is equal to 2.
3x - 2 + 5 = 16 3x + 3 = 16 3x = 13 x = 13/3 ~ 4.333
First, you would add 13+13, which equals 26. Then you would subtract 26-13 which equals 13. So the problem would be 26-13=13.
It is a simultaneous equation and when solved its solutions are x = 71/26 and y = 50/13
7-3x = -4x + 13x = 6