Q.4

해가 하나·없음·무수히 많음

2분기 (12~2월)

일차방정식의 해가 하나인지, 없는지, 무수히 많은지 판단하기

난이도

보통

난이도

문제 수

예제 포함답안지 포함

@page { size: letter; margin: 0; } @media print { .ws-page + .ws-page { break-before: page; } } Daniel Math Academy \cdot Grade 8 Math One, None, or Infinitely Many Solutions Skill Q.4 \cdot Multi-step equations \cdot ★★☆ Medium \cdot Quarter 2 Name Date Score / 8 Scan for answers Write one solution (and give it), no solution, or infinitely many solutions. Example 2 (x + 3) = 2 x + 6 2 x + 6 = 2 x + 6 : infinitely many solutions Think: If the variable drops out and what is left is always true, every number is a solution. If what is left is false, like 6 = 5, there is no solution. 1 3 (k - 5) = 3 k - 17 2 7 (n - 4) = 7 n - 28 3 1 + 4 n = 28 + n 4 - 3 (m - 2) = - 2 (m - 3) + 6 5 8 (m + 5) = 8 m + 38 6 3 + 6 k = - 6 + 7 k 7 - 5 (p + 3) = - 4 (p + 8) + 21 8 - 7 p + 24 + 15 p = 8 p + 17 Daniel Math Academy \cdot danielmath.com Worksheet # edy8d9x \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 8 Math Answer Key Q.4 One, None, or Infinitely Many Solutions \cdot ★★☆ Medium 1 no solution 2 infinitely many solutions 3 one solution: n = 9 4 one solution: m = - 6 5 no solution 6 one solution: k = 9 7 one solution: p = - 4 8 no solution Daniel Math Academy \cdot danielmath.com Worksheet # edy8d9x \cdot Answer Key \cdot Page 2 / 2

Q. 다단계 방정식스킬 6개