Question

resouver as equesoes a segue A (t+21=6) B (9=x+17) C (-5=y-8) D (a-10=-13) E ( 6 x=84) F (x:7=77) G (-3 x=27) H (2 y\5=4)

Answer 1

A) t+21=6
t=-21+6
t=-15

B)9=x+17
9-17=x
x=-8

C)-5=y-8
-5+8=y
y=3

D)a-10=-13
a=-13+10
a=3

E)6x=84
x=84/6
x=14