81x-342=76(x-2) 0.3x+7x-0.25x=21.15
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81x-342=76(x-2) 0.3x+7x-0.25x=21.15
81x-342=76(x-2) 0.3x+7x-0.25x=21.15
81x-342=76(x-2) 0.3x+7x-0.25x=21.15
解此式,首先要求出x的值.可从已知的方程式中求出.81x-342=76(x-2) 81x-342=76x-152 81x-76x=-152+342 5x=190 x=190÷5 x=36 知道了x的值后,再来解方程式:“0.3x+7x+0.25x=21.15”:0.3x+7x-0.25x=21.15 7.05x=21.15 x=21.15÷7.05 x=3
81x-342=76(x-2) 0.3x+7x-0.25x=21.15
81x-342=76X(x-2)
81X-342=76(x-2),
81x-342=76(x-2)
f(x)=x^2+x (x
81x-342=76(x-2)解方程
81x-342=76(x-2)怎么解
81X-342=76(X-2 )
81x-342=76(x-2)怎么解,
81x-342=76(x-2)求解
解方程:81x-342=76(x-2) 4分之x-3.6=8分之x+4.8
1-x÷3=2(1-x÷2) 3(x+2)=4(x+1) 81x-342=76(x-2) x÷2+x÷3=0.5
解方程:81x-342=76(x-2) 4分之x-3.6等于8分之x+4.8
求未知数x的值(x+4)÷5=61.2×(x+5)=14.44.2x÷1.6-14=0.175(10-7.5)x=0.125×85x-20%x=19.281x-342=76(x-2)0.3x+7x-0.25x=21.15x÷1右5/18=2右8/231右2/3-1右7/30x=1右1/201/2x+1/3x=4
(x+x)+(x-x)+(x*x)+(x÷x)=81
x^2=x
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,