The Math Challenge Question Preview (ID: 9399)


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What is the sum of x-3 and 2x+7?
a) 2x+4
b) 3x+10
c) 3x+4
d) 2x+10

(8u+3) - (4u-2)=
a) 12u+5
b) 4u+1
c) 4u+5
d) 12u+1

-(2x-4+5x)=
a) -7x+4
b) 3x-4
c) 3x+4
d) -7x-4

(a+3b+5)+(3a-b-5)=
a) 4a+4b
b) 4a+2b
c) 4a+4b+10
d) 4a+2b+10

(x-y)-(y-x)
a) 0
b) -2y
c) 2x+2y
d) 2x-2y

What is the sum of r-10 and 100-3r?
a) 90-2r
b) 90+2r
c) 110-2r
d) 110+2r

6 + 2(x + y - 2) =
a) 2x + y + 2
b) 2x + y + 4
c) 2x + 2y + 2
d) 2x + 2y + 4

(12a + 9 - 5b) + (17b - 6 - 2a) =
a) 29a + 3 - 7b
b) 10a + 12b + 3
c) 10a - 22b + 3
d) 14a + 12b + 15

Find the sum of (4x + 9) and (x - 12)
a) 5x + 3
b) 5x + 9 + 3
c) 5x - 9 + 3
d) 5x - 3

Simplify the expression -10 (x - 3y + 11)
a) 10x - 30y - 110
b) -10x + 30y - 110
c) 10x + 30y - 110
d) -10x - 30y + 110

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