Question

2.tim y

a,y-254=812+54

b,487+y-54=600

c,87-59=y+145

 

Answer 1

a: =>y-254=866

hay y=1120

b: =>433+y=600

nên y=167

c: =>y+145=28

hay y=-117

Answer 2

thanh you

Answer 3

a: =>y-254=866

hay y=1120

b: =>433+y=600

nên y=167

c: =>y+145=28

hay y=-117

Answer 4

a: =>y-254=866

hay y=1120

b: =>433+y=600

nên y=167

c: =>y+145=28

hay y=-117