Question

急！！一道数学计算题

(x-40)*(1-20%)/700=(x-40-48)*(1-20%)/600

Answer 1

(x-40)*(1-20%)/700=(x-40-48)*(1-20%)/600,(x-40)/7=(x-88)/6,6(x-40)=7(x-88),x=376

Answer 2

(x-40)*(1-20%)/7=(x-40-48)*(1-20%)/6
6(x-40)=7(x-40-48)
6x-240=7x-280-336
x=376
希望对你有帮助
谢谢

Answer 3

(x-40)*(1-20%)/700=(x-40-48)*(1-20%)/600
. 6X-240=7X-616
. X=376

Answer 4

计算：（2/3-1/3)+(1/4-1/5)+(1/7-1/10)+(1/14-1/15)+(1(2/3-1/3)+(1/4-1/5)+(1/7-1/10)+(1/14-1/15)+(1/28-1

Answer 5

(x-40)*(1-20%)/700=(x-40-48)*(1-20%)/600
解：原式分后可得：7*（X-88）=6*（X-40）
7X-6X=616-240
X=376

Answer 6

376