y = 1 + 3x
y = 16 - 2x
Because y = y, that means...
1 + 3x = 16 - 2x
Solve for x...
x = 3
Plug it back in to one of the original equations...
Y = 1 + 3(3) = 10
So...
x = 3
y = 10
(2, -1)
y = 3X - 1
y = 3x + 1
If: 3x+5 = 4x+1 Then: x = 4
(1, 1)
x + 2 = 3x-1 -2x = -3x = 1,5
It is called the commutative property, a + b = b + a
1
0 because X= -1
2x+5=3x+1 -x=-4 x=4
3x(2x + 1)
If 3x + 5x = -8, what is x + 1? 3x + 5x = -8 8x = -8 x = -1 x + 1 = -1 + 1 = 0