问题
填空题
如果4x+3=31,那么9x-8=______.
答案
根据题意可得:
4x+3=31
4x=31-3,
4x=28,
x=28÷4,
x=7;
那么,9x-8=9×7-8=63-8=55.
故答案为:55.
如果4x+3=31,那么9x-8=______.
根据题意可得:
4x+3=31
4x=31-3,
4x=28,
x=28÷4,
x=7;
那么,9x-8=9×7-8=63-8=55.
故答案为:55.
选词填空。 | |
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