问题
解答题
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答案
(1)2x-5.35=65%,
2x-5.35+5.35=0.65+5.35,
2x÷2=6÷2,
x=3;
(2)
x+1 4
x=121,2 3
x=121,11 12
x×11 12
=121×12 11
,12 11
x=132;
(3)(x+
)×7=8.1,6 7
7x+6=8.1,
7x+6-6=8.1-6,
7x÷7=2.1÷7,
x=0.3;
(4)
=x 3.6
,5 1.2
×3.6=x 3.6
×3.6,5 1.2
x=15.