A phone company offers two packages of service. Package A is $50.00 per month with an additional charge of $0.20 per minute for long distance. Package B is $60.00 per month with an additional charge of $0.15 per minute for long distance. How many minutes have to be used for the costs of both plans to be the same? A.
40
B.
400
C.
20
D.
200

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.

answer is c

step-by-step explanation:

81/12=324/x

x=48