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Multi-Step Equation
Slope from two points
Elimination method
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Substitution method
100
What is −20 = −4x − 6x
2
100
(1, −19), (−2, −7)
-4
100
2x – y = 17 x – y = 10
x = 7 y = –3
100
What is the slope and y intercept y=2x+5
m=2 b=5
100
7x+3y=22 4y=20
x=1 y=5
200
What is 8x − 2 = −9 + 7x
-7
200
(3, −20), (5, 8)
14
200
–x – 7y = 9 –x + 9y = –23
x = 5 y = –2
200
y=-5x-1 slope and y intercept
m= -5 b= -1
200
-2x+6y=18 3y=15
x=6 y=5
300
What is −(1 + 7x) − 6(−7 − x) = 36
5
300
(9, 3), (19, −17)
-2
300
–x + 9y = –5 x –5y = 1
x = –4 y = –1
300
x -2, -1, 0, 1, 2 y 3, 5, 7, 9, 11
What is slope
300
-4x+5y=-15 -3y=21
x=-5 y=-7
400
What is −3(4x + 3) + 4(6x + 1) = 43
4
400
5x+2y =-10
m = -5/2 b= -5
400
x + 7y = 24 x – 9y = –24
x = 3 y = 3
400
x -3,-2, -1, 0, 1 y 5, 2, -1, -4, -7
What is slope
400
-8x+7y=10 9y=-18
x=-3 y=-2
500
What is −5(1 − 5x) + 5(−8x − 2) = −4x − 8x
-5
500
(−4, 9) ( −5, 8)
1
500
x + 3y = 18 –x –4y = –25
x = –3 y = 7
500
x 1,2,3, 4, 5 y -17, -13, -9, -5, -1
What is slope
500
-x-3y=4 2x=16
x=8 y=-4