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The Math Challenge
Test Description: This is an app in which you can choose between many games to learn how to add and subtract linear equations.
Instructions: Answer all questions to get your test result.
1) What is the sum of x-3 and 2x+7?
A
3x+4
B
2x+4
C
3x+10
D
2x+10
2) (8u+3) - (4u-2)=
A
12u+5
B
12u+1
C
4u+1
D
4u+5
3) -(2x-4+5x)=
A
-7x+4
B
3x+4
C
3x-4
D
-7x-4
4) (a+3b+5)+(3a-b-5)=
A
4a+2b
B
4a+2b+10
C
4a+4b
D
4a+4b+10
5) (x-y)-(y-x)
A
-2y
B
2x+2y
C
0
D
2x-2y
6) What is the sum of r-10 and 100-3r?
A
110-2r
B
90+2r
C
90-2r
D
110+2r
7) 6 + 2(x + y - 2) =
A
2x + y + 2
B
2x + 2y + 4
C
2x + 2y + 2
D
2x + y + 4
8) (12a + 9 - 5b) + (17b - 6 - 2a) =
A
10a - 22b + 3
B
29a + 3 - 7b
C
10a + 12b + 3
D
14a + 12b + 15
9) Find the sum of (4x + 9) and (x - 12)
A
5x - 3
B
5x - 9 + 3
C
5x + 9 + 3
D
5x + 3
10) Simplify the expression -10 (x - 3y + 11)
A
10x - 30y - 110
B
-10x + 30y - 110
C
10x + 30y - 110
D
-10x - 30y + 110
*select an answer for all questions
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