Question

6-Resolva as equações no seu caderno;
a)2x +5=13
b)4y -3 -y +8=11
c)6. (x -2)=12
d) 10 -2 x= 3x
e)y -3=6 +4y
f)3. (x +3)=27

Answer 1

a) 2x=13-5

×= 8/2

x=4

b)3y+5=11

3y=6

y=6/3

y=2

c) 6x-12=12

6x= 12+12

x=24/6

×= 4

d)×=-10

e) -5y=6+3 .(-1)

5y= 9

y=9/5

f)3x+9=27

3x=27-9

×=18/3

×=6