Make each mixed number into an improper fraction.

1. 4 3/5
2. 8 7/10
3. -2 4/5

1. 23/5

2. 87/10

3. -14/5

Step-by-step explanation:

To convert a mixed number into an improper fraction, we multiply the denominator (bottom number) by the whole number, then, we add the product by the numerator (top number).

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.