Carl earned $240 this week. this was $20 less than one-half the amount he earned last week which equation, when solved for x, gives the amount carl earned last week?

$520 was earned by carl in last week

Step-by-step explanation:

(1/2 X - 20 )  = 240

1/2 X = 240 +20 = 260

 X = 260÷1/2 = 520

verification

520 ÷2 = 260 - 20 = 240

Hence proved

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.