Okay I want to show u how to do it, but i dont have time
So im just goin to give u the answer
Q: x + y= 4 y= 2x + 1
A: x=1 y=3
x equals 4
2x+5=3x+1 -x=-4 x=4
(4 + 2x) - (-2x + 1) = 13 + 6 4 + 2x + 2x -1 = 19 4x +3 = 19 4x = 19 - 3 4x = 16 therefore x = 16/4 x = 4
(3, 1)
(4, -1)
x equals 4
2x+5=3x+1 -x=-4 x=4
1
(4 + 2x) - (-2x + 1) = 13 + 6 4 + 2x + 2x -1 = 19 4x +3 = 19 4x = 19 - 3 4x = 16 therefore x = 16/4 x = 4
(3, 1)
(4, -1)
2x - 1 = 3x + 4 Subtract 2x from both sides: - 1 = x + 4 Subtract 4 from both sides: -5 = x
4x + 1 = 2x + 5 4x + 1 - 2x = 2x + 5 - 2x 2x + 1 = 5 2x + 1 - 1 = 5 - 1 2x = 4 2x/2 = 4/2 x = 2
4+2x-2x+1=13+6 Combine like terms. (4+1=5; 2x-2x=0; 13+6=19) 5=19 This problem has no solution.
2x+1 = 9 2x = 9-1 2x = 8 x = 4
5 - 2x = 8 x = -1 and 1/2 4x = 6 x = 6/4 or 3/2
(2x-4)(x-1) = 0