Determine the number of solutions to each system of equations.
1. y=0.5x-2, y=-0.5x+4
2. y=0.5x+5, y=0.5x+1
3. y=2x+1, y=4x+1
4. y=3x+2.5, y=3x+2.5
5. y= -x-3, y= -x+3
6. y= -x-2, y= -x-2

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

the answers are in the images, i received 100% on this assignment. hope this !