x=6
7
(1) 5x+y=-12 (2) 7x-3y=-30 From (1) one gets y = -12-5x Put into (2) 7x-3y = 7x -3 (-12-5x) = 7x + 36 +15 x = 22x +36=-30 22x = -30-36 = -66 so x = -3 and y=-12-5x = -12-5x-3= 3 The solution is (-3,3)
5x+3y
5x = 4x + 9 x = 9
5x+49 = 8x+13 49-13 = 8x-5x 36 = 3x x = 12
-13 Plug 5 in and multiply it by -5 which equals -25 12 - 25 = -13
The answer to the math problem of 5x plus 12 equals 93-4 is 77/5.
5x - 4x = 13 - 3 ie x = 10
5x + 3 = -12 5x =-12-3 =-15 x = -3
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
2x-12
8(1+5x) +5 = 13+5x => 8+40x + 5 = 13 +5x => 13+40x = 13+5x => 13-13+40x = 13-13+5x => 40x = 5x => 40x - 5x = 0 => 35x = 0 => 35x/35 = 0/35 => x = 0
Here is the work for that problem: 5x+ 2=12 5x= 12-2 5x=10 x= 2
3x+7=5x-13 ----> 3x-5x=-13-7 ----> -2x=-6 -----> x=3
No.
3x - 7 = 5x + 13-2x = 20x = -10