问题
解答题
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答案
(1)x+36=75,
x+36-36=75-36,
x=39;
(2)y-62=39,
y-62+62=39+62,
x=101;
(3)7x=84,
7x÷7=84÷7,
x=12;
(4)4x=36,
4x÷4=36÷4,
x=9;
(5)1.5x=9,
1.5x÷1.5=9÷1.5,
x=6;
(6)x÷1.3=6.5,
x÷1.3×1.3=6.5×1.3,
x=8.45.
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(1)x+36=75,
x+36-36=75-36,
x=39;
(2)y-62=39,
y-62+62=39+62,
x=101;
(3)7x=84,
7x÷7=84÷7,
x=12;
(4)4x=36,
4x÷4=36÷4,
x=9;
(5)1.5x=9,
1.5x÷1.5=9÷1.5,
x=6;
(6)x÷1.3=6.5,
x÷1.3×1.3=6.5×1.3,
x=8.45.