How to finish this mathematical equation?

9x+3y=420
1x+6y=296
+
10x+9y=716

p. s. i'm not looking for the answer i'm looking for how to finish the equation

Step-by-step explanation:

9x+3y=420   (eq1)

1x+6y=296 (eq2)

to solve by elimination, we first multiply (eq 1) by 2

(eq1) x 2

2(9x+3y)=2 (420)

18x + 6y = 840 (eq 3)

eliminate y term by subtracting (eq2) from (eq3)

(eq 3) - (eq 2)

(18x + 6y) - (1x+6y) = 840 - 296

18x + 6y - 1x-6y = 544

18x - 1x = 544

17x = 544 (divide both sides by 17)

x = 544/17 = 32

Since you said that you are not looking for the answer, i will stop here, but to get the y value, subtitute the value of x which we found, back into eq 1 or 2 to find y

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total

a

step-by-step explanation: