Question

Determine o valor da incógnita nas equações:

a) 10x – 8 = 3x + 6

b) 5 + 2 (3y – 1) = 7y + 6

c) 4t – (2t – 5) = 3 – 4 (2t +3)

d) x

8

- 2 = 3 x

6

+ x – 4

e) n

3

+

n+2

4

= 4

f) 2 k+1

2

-

k−3

6

=

1

3​

Answer 1

a)7x=14

x=2

b)5+6y-2=7y+6

3+6y=7y+6

-3=y

c)4t-2t+5=3-8t-12

2t+5=-9-8t

10t=-14

t=-14/10

t=-1,4