Backtracking A
Backtracking B
Balance A
Balance B
Balance C
100
What first happens to x in the expression:
2x + 4
2x
100
What is the inverse operation of (x)?
/
100
Solve for a:
a + 7 = 15
8
100
Solve for a:
a + 9 = 11
2
100
Solve for a:
a + 10 = 21
11
200
What is the missing operation?
-5
200
What is the value of x?
10
200
Solve for a:
5a = 15
3
200
Solve for a:
a/3 = 2
6
200
Solve for a:
3a = 36
12
300
What is the full equation?
What is the value of x?
5x - 9 = 16
x = 5
300
What is the full equation?
What is the value of x?
2(x+6) = 20
x = 4
300
Solve for a:
a - 4 = -4
0
300
Solve for a:
a - 7 = -2
5
300
Solve for a:
a - 6 = 2
8
400
Solve for x:
5x + 6 = 11
1
400
Solve for x:
8x - 9 = 7
2
400
Solve for a:
2a + 1 = 5
2
400
Solve for a:
-3 - a = -2
-1
400
Solve for a:
42
500
Solve for x:
2
500
Solve for x:
14
500
Solve for a:
2a + 1 = 4
3/2
500
Solve for a:
5a + 2 = 8
6/5
500
Solve for a:
5 - 3a = 1
4/3