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1. 方程$x - 1 = 0$的解为______.
答案
x=1
2. 方程$x + 1 = 0$的解为______.
答案
x=-1
3. 方程$\frac{1}{2}x = 5$的解为______.
答案
x=10
解析
解：方程两边同时乘以2，得$x = 10$。
$x=10$
$x=10$
4. 方程$\frac{1}{3}x = -\frac{4}{3}$的解为______.
答案
x=-4
解析
解：方程两边同时乘以3，得$x = -4$。
5. 方程$7y + 3 = -11$的解为______.
答案
y=-2
解析
解：7y + 3 = -11
7y = -11 - 3
7y = -14
y = -2
7y = -11 - 3
7y = -14
y = -2
6. 方程$-6x - 3 = 5$的解为______.
答案
x=-$\frac{4}{3}$
解析
解：$-6x - 3 = 5$
$-6x = 5 + 3$
$-6x = 8$
$x = -\dfrac{8}{6}$
$x = -\dfrac{4}{3}$
$-6x = 5 + 3$
$-6x = 8$
$x = -\dfrac{8}{6}$
$x = -\dfrac{4}{3}$
7. $-x + 6 = 3$
答案
x=3
解析
$-x + 6 = 3$
$-x = 3 - 6$
$-x = -3$
$x = 3$
$-x = 3 - 6$
$-x = -3$
$x = 3$
8. $12x + 2 = -1$
答案
x=-$\frac{1}{4}$
解析
解：$12x=-1-2$
$12x=-3$
$x=-\frac{3}{12}$
$x=-\frac{1}{4}$
$12x=-3$
$x=-\frac{3}{12}$
$x=-\frac{1}{4}$
9. $0.2x + 0.4 = 0.6$
答案
x=1
解析
解：0.2x = 0.6 - 0.4
0.2x = 0.2
x = 0.2 ÷ 0.2
x = 1
0.2x = 0.2
x = 0.2 ÷ 0.2
x = 1
10. $-3x - 4 = -1$
答案
x=-1
解析
解：$-3x - 4 = -1$
$-3x = -1 + 4$
$-3x = 3$
$x = -1$
$-3x = -1 + 4$
$-3x = 3$
$x = -1$
11. $-2x + 8 = -7$
答案
x=$\frac{15}{2}$
解析
解：$-2x + 8 = -7$
$-2x = -7 - 8$
$-2x = -15$
$x = \frac{15}{2}$
$-2x = -7 - 8$
$-2x = -15$
$x = \frac{15}{2}$
12. $-\frac{4}{3}x - 2 = 3$
答案
x=-$\frac{15}{4}$
解析
解：$-\frac{4}{3}x - 2 = 3$
$-\frac{4}{3}x = 3 + 2$
$-\frac{4}{3}x = 5$
$x = 5 × (-\frac{3}{4})$
$x = -\frac{15}{4}$
$-\frac{4}{3}x = 3 + 2$
$-\frac{4}{3}x = 5$
$x = 5 × (-\frac{3}{4})$
$x = -\frac{15}{4}$
13. $7m - 2 = 4m - 11$
答案
m=-3
解析
解：$7m - 4m = -11 + 2$
$3m = -9$
$m = -3$
$3m = -9$
$m = -3$
14. $-\frac{1}{3}x - 2 = -1 + x$
答案
x=-$\frac{3}{4}$
解析
解：$-\frac{1}{3}x - 2 = -1 + x$
移项，得$-\frac{1}{3}x - x = -1 + 2$
合并同类项，得$-\frac{4}{3}x = 1$
系数化为1，得$x = -\frac{3}{4}$
移项，得$-\frac{1}{3}x - x = -1 + 2$
合并同类项，得$-\frac{4}{3}x = 1$
系数化为1，得$x = -\frac{3}{4}$
