x=7 look at the bottom for the reason:
First, when a number and a variable are placed next to each other it means to multiply the 2. (example- what is 3x if x=7 ? Well, 3x7=21 so, 3x=21)
so, 5x + 2x + 3x + 10x = 140
20x = 140
40/20 = 7 so,
(5x7) + (2x7) + (3x7) + (10x7) = 140 so,
35 + 14 + 21 + 70 = 140
2x-3 = 21+10x 2x-10x = 21+3 -8x = 24 x = -3
10x. 'coz x=? so just add 2 & 8.
If your question was 2X + 5 =10. X equals what? Then X=2.5
2x + (10x - 4) = 20 2x + 10x - 4 = 20 12x - 4 = 20 12x = 24 x = 2
The solution is 1/2 or 0.5. This is how: 2x+1=7-10x 2x=6-10x 12x=6 x=1/2
2x-3 = 21+10x 2x-10x = 21+3 -8x = 24 x = -3
10x. 'coz x=? so just add 2 & 8.
10x 2x divide 2x equals?
If your question was 2X + 5 =10. X equals what? Then X=2.5
2x + (10x - 4) = 20 2x + 10x - 4 = 20 12x - 4 = 20 12x = 24 x = 2
The solution is 1/2 or 0.5. This is how: 2x+1=7-10x 2x=6-10x 12x=6 x=1/2
2x+5=-91-10x 12x+5=-91 12x=-96 x=-8
2x-3=10x+21 2x-3-2x=10x+21-2x -3=8x+21 -3-21=8x+21-21 -24=8x -3=x
12x-3=2x+17 10x-3=17 10x=20 x=2
y=-10x-4
10x - 78 = 1, 10x = 79, x = 7.9
-2(5x+3)-2x<-3(2x-4)+2