①6x-0.9=4.5, 6x-0.9+0.9=4.5+0.9, 6x=5.4, 6x÷6=5
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①6x-0.9=4.5,
6x-0.9+0.9=4.5+0.9, 6x=5.4, 6x÷6=5.4÷6, x=0.9; ②2(x-3)=5.8, 2(x-3)÷2=5.8÷2 x-3=2.9, x-3+3=2.9+3, x=5.9; ③1.6x=6.4, 1.6x÷1.6=6.4÷1.6, x=4; ④4x-3×9=29, 4x-27=29, 4x-27+27=29+27, 4x=56, 4x÷4=56÷4, x=14; ⑤16+8x=40, 16+8x-16=40-16, 8x=24, 8x÷8=24÷8, x=3; ⑥x÷1.1=3, x÷1.1×1.1=3×1.1, x=3.3.
5X+45+55=600 X-0.52X=96 4x+6x-2x=10 4.5x+0.9X=0.54 6(3X+3)=3
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