Question

X＋7/12等5/6 7X-1.25等3/4 x-(2/5＋1/4)等7/10

Answer 1

X＋7/12等5/6

x=10/12-7/12

x=3/12

x=1/4

7X-1.25等3/4

7x=5/4+3/4

7x=2

x=2/7

x-(2/5＋1/4)等7/10

x=2/5+1/4+7/10

x=8/20+5/20+14/20

x=27/20