Question

RESOLVA AS EQUAÇÕES:
a) x + 5 = 21

b) x – 6 = 50

c) y – 15 = 6

d) z + 9 = – 60

e) 7 = x – 4

f) 18 = 46 – x
g) 2x = 12

h) – 15y = – 45

i) – 120 = 3x





n) 4x + 15 = 7
o) 7x + 4 = 9

p) 5y + 4 = – 21

q) 7x – 4 = 2x + 16

r) 6x – 8 = 52


s) 19x + 5 = 105 – x

t) 2 ( x + 1) = 30

u) 3 (x + 3) – 5 = 31

v) – 3 (y – 4) = 5 (y – 4)

w) 2 (x + 5) – 8 = 74

Answer 1

Explicação passo-a-passo:

A) x +5=21

x=21-5

X = 16

B) X-650

X = 50 + 6

x = 56