Find X Substitution System

Solve the system by substitution:
y = x + 5
4x + y = 20

• (3,8)

• (8,3)

• (0,2)

• (2,0)

Solve the system of equations using substitution:

-4x + 4y = 8

y = -2x - 10

• (-4, -2)

• (12, -34)

• (4, -18)

• (-2, -6)

Using the simultaneous equations 7x+7y=-28 and -4 - 0.875x = 1y, find the solution, giving your answer as a coordinate pair

• (1, -4)

• (0, -4)

• (0, -3)

• (-4, 0)

Using the simultaneous equations 2x+10y=60 and -45 + 30y = 21x, find the solution, giving your answer as a coordinate pair

• (6, 5)

• (5, 5)

• (5, 6)

• (5, 5)

What is the first step in solving a system by Substitution?

• Make sure both equations are in standard form.

• Make sure at least one equation is solved for one variable.

• Make sure both equations are in slope-intercept form.

• Make sure both equations can be solved.

• (3, 4)

• (4, 3)

• (4, 4)

• (3, 3)

• (1, 2)

• (1, 1)

• (2, 1)

• (2, 2)

• (4, 1)

• (1, 4)

• (-2, 0)

• No solution.

Identify the type of solution for the following system of equations.

• No solution.

• One solution.

• Infinitely many solutions.

• Two solutions.

Solve the solution by substitution:

x = 7 - 2y

2x + y = 5

• (-1,4)

• (4,-1)

• (1,3)

• (3,1)