题目内容
解方程.
| ①4x+1.2x=26 | ②12×6+8x=120. |
①4x+1.2x=26,
5.2x=26,
5.2x÷5.2=26÷5.2,
x=5;
②12×6+8x=120,
72+8x=120,
72+8x-72=120-72,
8x=48,
8x÷8=48÷8,
x=6.
5.2x=26,
5.2x÷5.2=26÷5.2,
x=5;
②12×6+8x=120,
72+8x=120,
72+8x-72=120-72,
8x=48,
8x÷8=48÷8,
x=6.
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