7 학년 방정식 풀기 연습 문제 과정! 100 도! 급 해!

7 학년 방정식 풀기 연습 문제 과정! 100 도! 급 해!

7 (2x - 1) - 3 (4x - 1) = 4 (3 x + 2) - 1;
(5y + 1) + (1 - y) = (9y + 1) + (1 - 3y);
[() - 4] = x + 2;
20% + (1 - 20%) (320 - x) = 320 × 40%
2 (x - 2) + 2 = x + 1
2 (x - 2) - 3 (4x - 1) = 9 (1 - x)
11 x + 64 - 2x = 100 - 9x
15 - (8 - 5x) = 7x + (4 - 3x)
3 (x - 7) - 2 [9 - 4 (2 - x)] = 22
3 / 2 [2 / 3 (1 / 4x - 1) - 2] - x = 2
1. 2x - 10.3x = 15
2. 0.52x - (1 - 0.52) x = 80
3 x / 2 + 3x / 2 = 7
4 3 x + 7 = 32 - 2x
5 3 x + 5 (138 - x) = 540
6 3 x - 7 (x - 1) = 3 - 2 (x + 3)
7 18 x + 3 x - 3 = 18 - 2 (2x - 1)
8, 3 (20 - y) = 6 y - 4 (y - 11)
9 - (x / 4 - 1) = 5
10, 3. [4 (5y - 1) - 8] = 6.
10 / 3 (x / 5 + 3 / 7) = 9x / 2
5 / 3 (x + 0.5) + 2 = 3x - 6
5x + 2 (2x / 3 + 2) = 2 / 3 (x - 6) + 2
(2x - 7) / 2 - (6x - 5) / 3 = 2x + 3
(3 x + 2) / 5 - (x - 6) = x / 3
6x - (x / 3 + 2) = 2 (x / 5 + 5 / 2) - 3
3 (x / 11 - 2) - 5 = 2 + 3x / 3
10 / 3 (2x - 6) = 3 / 5
x / 2 - (x / 3 - 2) = 3
2 / 3 (x + 3) - 3 = 5x / 3
5 / 3 (2x - 5 / 3) = 2x / 5 - 8 / 9
25 (x / 3 - x / 2 + 2 / 5) - 2 = 3 / 5 (x - 2 / 7) + 4 / 9
잘 해 봐!