Given y = 2x + 4, plug in x = 42 and simplify:
y = 2(42) + 4
y = 84 + 4
y = 88
If x=4 then 2x+7 =
x equals 4
3x+56 = 2x+4 3x-2x = 4-56 x = -52
It is: 38+4 = 42
Do you need this equation factored or? 2x+3=x+4?
x=-4
8
parallel
2x-4
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
2x + 5 = 13 2x = 8 2x/2 = 8/2 x=4
2x+4 = -16 2x = -16-4 2x = -20 x = -10