Hitunglah nilai x jika ada yang memenuhi persamaan nilai mutlak berikut. jika tidak ada nilai x yang memenuhi berikan alasanmu 2[3x-8] = [-4]
[x] : [x-2] = -4, x bukan 0
( tanda : sama dengan per ya)
selesaikan persamaan nilai mutlak berikut ini
[2y + 5] = [7 - 2y]
[4x - 3] = -[2x - 1]

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?