Solve the following system of linear equations by SUBSTITUTION method

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Solve the following system of linear equations by SUBSTITUTION method
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Pa solve naman po ng graph the given system of linear equation and identify how many solutions are there. x-2y=12, 6x+3y=-9

rhosemagnayelozada
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Patulong po..
Write your answer in extra sheet of paper. Show your solution.
1. You went to a hiking with your friends at Pico de Loro at Maragondon, Cavite. Upon reaching the summit, you drop a coin. The coin falls a distance of 4ft. for the first seconds, 16th feet for the next, 28ft. on the third, and so on. Find the distance the coin will fall in 6 seconds.
2. 10 months from now, your parents will celebrate their silver wedding anniversary and you want to give them a small present. In order to do that, you start to save Php100 on the first month, Php 200 on the second month, Php 300 on the third month, and so on for the period of 11 months. How much money will you save?
3. Your science teacher is concluding an experiment about a certain bacteria. If there are 12 bacteria in the culture at the end of one day, and that number triples everyday, find the total number of bacteria in the culture at the end of fifth day.
4. Find four consecutive even numbers such that the product of the first, third and fourth is 2240.
5. Divide using two methods: x⁴-6x²+7x-6/x+3
Maraming Salamat and Advance Merry Christmas po!❤️

starstrike
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Patulong po...
Divide using two methods: x⁴-6x²+7x-6/x+3

starstrike
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Hello po🤗
Patulong nmn po pano po ito islove?
Solve the following Systems of linear equations by substitution
1) y=3x
x+y=8

2) x= y-5
x+y= -1

Ty po

chimmypark