问题 解答题

(1)已知:8x=44.8,那么:0.38+1.2x=______

(2)已知:6x=36,那么:7x-______=29.5.

答案

(1)8x=44.8,

8x÷8=44.8÷8,

x=5.6;

0.38+1.2×5.6,

=0.38+6.72,

=7.1;

(2)6x=36,

6x÷6=36÷6,

x=6,

7×6-29.5,

=42-29.5,

=12.5;

故答案为:7.1、12.5.

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