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两道解方程+两道递等式解方程:8X-14.4÷1.2=280.5(X-3)=31.5递等式(能简则简)63×101-63÷0.1(6.6-2.91)+(3.4-1.09)...
两道解方程+两道递等式 解方程:8X-14.4÷1.2=28 0.5(X-3)=31.5 递等式(能简则简) 63×101-63÷0.1 (6.6-2.91)+(3.4-1.09)
两道解方程+两道递等式
解方程:8X-14.4÷1.2=28 0.5(X-3)=31.5
递等式(能简则简) 63×101-63÷0.1 (6.6-2.91)+(3.4-1.09) 展开
两道解方程+两道递等式
解方程:8X-14.4÷1.2=28 0.5(X-3)=31.5
递等式(能简则简) 63×101-63÷0.1 (6.6-2.91)+(3.4-1.09) 展开
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8X-14.4/1.2=28
8X-12 =28
8X-12+12=28+12
8X =40
X =5
0.5(X-3)=31.5
0.5(x-3)除以0.5=31.5/0.5
X-3 =63
X-3+3=63+3
x=66
63×101-63÷0.1
=63×101-63×10
=63×(101-10)
=63×91
=5733
(6.6-2.91)+(3.4-1.09)
=6.6-2.91+3.4-1.09
=6.6+3.4-2.91-1.09
=10-(2.91+1.09)
=10-4
=6
8X-12 =28
8X-12+12=28+12
8X =40
X =5
0.5(X-3)=31.5
0.5(x-3)除以0.5=31.5/0.5
X-3 =63
X-3+3=63+3
x=66
63×101-63÷0.1
=63×101-63×10
=63×(101-10)
=63×91
=5733
(6.6-2.91)+(3.4-1.09)
=6.6-2.91+3.4-1.09
=6.6+3.4-2.91-1.09
=10-(2.91+1.09)
=10-4
=6
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