Given the system of linear equations.

part a: use substitution to find the solution to the systems of equations. include all of your work in your final answer.

part b: algebraically verify your answer to part a. include all of your work in your final answer.
part c: graphically verify your answer to part a. in your final answer, include the graph.
{x - y = 5
{4x + y = 10
! 11 points

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72