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klemol [59]
4 years ago
8

!100! POINTS PLEASE HELP ME BRAINLIEST!!!!!!!!!!!!

Mathematics
2 answers:
Allisa [31]4 years ago
7 0
This should be a basic system of equations problem
-------------
12x + 4y = 152
32x + 12y =420
-----------------------
First solve 12x + 4y = 152 for x
Add -4y to each side
<span>12x+4y+-4y</span>=<span>152+-<span>4y
</span></span>12x=-<span>4y+<span>152
</span></span>----------------------------
Divide each side by 12
12x ÷ 12 = \frac{-4y+152}{12}
x = -1/3y + 38/3
============================================================
Substitute -1/3y + 38/3 for x in 32x+12y=<span>420
</span>32(-1/3y + 38/3)+12y=420
-------------
Simplify each side
4/3y + 1216/3 = 420
-------------------
Add -1216/3 on each side
4/3y + 1216/3 + -1216/3 = 420 + -1216/3
4/3y = 44/3
-------------------------
Divide each side by 4/3
4/3y ÷ 4/3 = 44/3 ÷ 4/3
y = 11
y = 11 is your answer
Mademuasel [1]4 years ago
6 0

Answer:

y = 11 is your answer

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