Question

X+8=13 2.5+X=5.3 X-2.7=13 X-40=15 X-1.6=1.4 X=5.3=10 要这几道的解方

Answer 1

x+8=13

x=13-8

x=5

2.5+x=5.3

x=5.3-2.5

x=2.8

x-2.7=13

x=13+2.7

x=15.7

x-40=15

x=15+40

x=55

x-1.6=1.4

x=1.4+1.6

x=3

x-5.3=10

x=10+5.3

x=15.3