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Substitution
One Step
Two Steps
Distribute
Variable on Both Sides
100
Evaluate 3x - y if x = 4 and y = 5
What is 7
100
x + 3 = 12
What is 9
100
5x + 3 = 18
What is 3
100
2(x + 4) = 20
What is 6
100
6 + 2x = 5x
What is 2
200
Evaluate 6x + y if x = 4 and y = -8
What is 16
200
x - 3 = 4
What is 7
200
4m - 8 = 28
What is 9
200
3(x - 1) = 21
What is 8
200
3x - 15 = 6x
What is -5
300
Evaluate 18 - 5(b - a) if a = 3 and b = 6
What is 2
300
5x = 15
What is 3
300
-3x - 12 = 6
What is -6
300
7(x - 4) = -35
What is -1
300
6x + 11 = 8x - 1
What is 6
400
Evaluate b^2 - 4ac if a = 3 b= 4 & c = 2
What is -8
400
x/6 = 3
What is 18
400
8 + 5x = 43
What is 7
400
-3(x - 2) = 21
What is -5
400
-2 + 7x = -x + 14
What is 2
500
Evaluate b^2 - 4ac if a = -2 b= 3 & c = 4
What is 41
500
7 - x = -1
What is 8
500
-5 + 2x = 11
What is 8
500
6x - (3x - 2) = 14
What is 4
500
-15 + 5x + 3x = 15 - 2x
What is 3