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2022-06-06から1日間の記事一覧

How to solve simultaneous equations (substitution method) 連立方程式の解き方(代入法)

Question: Let's solve the following equations by the substitution method. ① 3x+2y=-2 ② x-4y=18 How to solve: As with the addition and subtraction method, the substition method also solves simltaneous equations by erasing a single letter. I…

How to solve simultaneous equations (addition andsubtraction method) 連立方程式の解き方 (加減法)

Question: Let's solve the following simultanoues equations by the addition and subtraction method. ① 4x-3y=6 ② 3x+2y=13 How to solve: A combination of 2 or more equations is called a simultaneous equation. The way to erase the letters by m…

Linear equations word problem (too many or too few) :1次方程式の文章題(過不足)

Question: Some pieces of of candy are given to some children. When each child gets 5 pieces of candy, there are 2 pieces too many. When each child gets 6 pieces of candy, there are 4 pieces too few. Find an answer to the number of children…