1) -x + 4 = -2x - 6
Add(2x)
x+4=-6
Subtract(4)
x = -10
Check your work
-(-10)+4=-2(-10) - 6
10+4=-2(-10) - 6
14=-2(-10)
14=20 - 6
14=14
Correct :)
2) 4R - 4 = 3R + 10
Add 4
4R=3R+14
Subtract 3R
R = 14
Check your work
4(14)-4=3(14)+10
56-4=3(14)+10
52=3(14)+10
52=42+10
52=52
Correct :)
3) 2Y - 3 = Y - 4
Add 3
2Y = Y - 1
Subtract Y
Y = -1
Check your work
2(-1)-3=-1-4
-2-3=-1-4
-5=-5
Correct :)
Hope it helps <3