解下列方程
1. $17+6p=29$
2. $3x+2=6$ 3. $2x+3=1$ 4. $2x-3=5x-12$
解答
1.) $17+6p=29$
=> 6p = 29 - 17
=> 12 或 p = $\frac{12}{6}$ = 2;
所以,p = 2 是答案
2.) $3x+2=6$
=>$3x = 6 - 2$
=> $4 =3 x$
=>$\frac{ 4}{3}$ 答案
3.) $3+2x=1$
=>$2x = 1 - 3$
=>$ -2 或 x = -\frac{2}{2}$
=>$ -1 ; x = -1$ 答案
4.)$2x-3=5x-12$
=>$5x - 2x = 12 - 3$
=>$ 3x = 9$
或 $x = \frac{9}{3}$ = 3;
$x = 3$ 答案
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