Substitution
What You Learned Before
100
A system solved by substitution: 4x + y = 24; y = 3x - 4
What is x = 4, y = 8, (4,8)?
100
Solve the multi-step equation: 35 + 5x = 65
What is an equation where x = 6?
200
A system solved by substitution: x + 3y = 36; x = 8y +3
What is x = 27, y = 3, (27,3)?
200
Combine like terms and solve: -7x + 9x - 25 = 3
What is an equation where x = 14?
300
A system solved by substitution: 2x + 4y = 52; y = x + 1
What is x = 8, y = 9, (8,9)?
300
Find the slope of a line that goes through the points (3, 2) and (7,6).
What is a line with a slope of 1?
400
A system solved by substitution: 9x + 7y = 81; y = 3x + 3
What is x = 2, y = 9, (2,9)?
400

Solve: (x2)5 

What is x10.

500
A system solved by substitution: 8x + 3y = 73; x = 6y - 10
What is x = 8, y = 3, (8,3)?
500
Write the equation of the line in point-slope form: (7,9) m = 3
What is y - 9 = 3(x - 7)?
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