Question

obtenha a soluçao de cada equaçao
a) 2x=16
b) y +5=9
c) 3z - 1=14
d) 7= 19- 2x
e)10-4 y=y
f) 3-z=5z-15

Answer 1

Oi!

a)

$</p><p>2x = 16 \\</p><p>x = \frac{16}{2}\\</p><p>\boxed{x = 8}$

b)

$y + 5 = 9 \\</p><p>y = 9 - 5\\</p><p>\boxed{y = 4}$

c)

$3z - 1 = 14 \\</p><p>3z = 14 + 1\\</p><p>3z = 15\\</p><p>z = \frac{15}{3}\\</p><p>\boxed{z = 5}$

d)

$7 = 19 - 2x \\</p><p>2x = 19 - 7\\</p><p>2x = 12\\</p><p>x = \frac{12}{2}\\</p><p>\boxed{x = 6}$

e)

$10 - 4y = y \\</p><p>- 4y - y = - 10 \\</p><p>- 5y = - 10 (-1)\\</p><p>5y = 10\\</p><p>y = \frac{10}{5}\\</p><p>\boxed{y = 2}$

f)

$</p><p>3 - z = 5z -15 \\</p><p>- z - 5z = - 15 - 3\\</p><p>-6z = - 18(-1)\\</p><p>6z = 18\\</p><p>z = \frac{18}{6} \\</p><p>\boxed{z = 3}$

Espero ter ajudado. Bobs estudos!