Question

obtenha a soluçao de cada equaçao.

 

 a)2×=16 

 

b) y+5=16

 

c)3z-1=14

 

d)7=19-2×

 

e)10-4y=y

 

f)3-z=5z-15

Answer 1

a)2×=16  ==> x = 8

b) y+5=16 ==> y = 16-5==> y = 11

c)3z-1=14 ==> 3z = 14+1 ==> z = 5

d)7=19-2× ==> 2x = 19-7 ==> 2x = 12 ==> x = 6

e)10-4y=y  ==> -4y-y = -10(-1)==> 5y=10 ==> y = 2

f)3-z=5z-15==> -z-5z=-15-3==> - 6z = -18(-1)==> 6z=18 ==> z = 3