X+5y=17
-4x+3y=24
how to solve this problem

x=-3 ,y=4

Step-by-step explanation:

x+5y=17(i)

-4x+3y=24(ii)

use substitution method

x+5y=17

make x subject of the formula

x=17-5y(iii)

substitute equation (iii) into equation (ii)

-4x+3y=24

-4(17-5y)+3y=24

-68+20y+3y=24

23y=24+68

23y=92

divide both sides by 23

y=92/23

y=4

substitute y in equation (iii)

x=17-5y

x=17-5(4)

x=17-20

x=-3

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0