Question

x÷5分之7等于12

Answer 1

问：x÷5分之7等于12

答：亲亲你好呀x÷7/5=12x÷7/5×7/5=12×7/5x=84/5x=16.8

答：亲亲你好呀x÷7/5=12x÷7/5×7/5=12×7/5x=84/5x=16.8检验 方程左边=84/5÷7/5=12=方程右边

问：9/10，X，减1/3，等于4/15

答：亲亲是这个样子吗？9/10x-1/3=4/15

问：嗯

答：亲亲9/10x-1/3=4/159/10x-1/3+1/3=4/15+1/39/10x=4/15+5/159/10x=9/15x=9/15÷9/10x=9/15×10/9=2/3

答：亲亲9/10x-1/3=4/159/10x-1/3+1/3=4/15+1/39/10x=4/15+5/159/10x=9/15x=9/15÷9/10x=9/15×10/9=2/3检验 方程左边=9/10×2/3-1/3=4/15=方程右边

问：3x+1/2×4=3

答：亲亲收到马上

答：亲亲你好呀3x+1/2×4=33x+2=33x+2-2=3-23x=13x÷3=1÷3x=1/3

答：亲亲你好呀3x+1/2×4=33x+2=33x+2-2=3-23x=13x÷3=1÷3x=1/3检验 方程左边=3×1/3+1/2×4=3=方程右边

答：亲亲收到马上

问：3/5X-1/10X，等于5/13

答：亲亲您好呀亲亲你好呀3/5X-1x/10=5/136/10x-1/10x=5/135/10x=5/13x=5/13÷5/10x=5/13×10/5x=10/13

答：亲亲您好呀亲亲你好呀3/5X-1x/10=5/136/10x-1/10x=5/135/10x=5/13x=5/13÷5/10x=5/13×10/5x=10/13检验 方程左边=3/5×10/13-1/10×10/13=5/13=方程右边