Question

obtenha a soluçao de equaçao.
a) 2x=16
b) y+5=9
c) 3z-1=14
d) 17=19-2x
e) 10-4y=y
f) 3-z=5z-15

Answer 1

a) 2x=16 ⇒x=16/2⇒x=8;
b)y+5=9⇒y=9-5⇒y=4;
c)3z-1=14⇒3z=14+1⇒3z=15⇒z=15/3⇒z=5;
d)17=19-2x⇒17-19=2x⇒-2=-2x⇒x=1;
e)10-4y=y⇒10=y+4y⇒10=5y⇒y=10/5⇒y=2;
f)3-z=5z-15⇒3+15=5z+z⇒18=6z⇒z=3