Question

Resolva as equações em R

Answer 1

Explicação passo-a-passo:

A 3(x -1) +2(x-3)=6

3x-3+2x-6=6

5x=6+6+3

5x=15

x=15÷5

x=3

B 5(×-2)-3(×+1)=7

5×-10-3×+3=7

5×-3×=7+10-3

2×=14

×=14÷2

×=7

C 2(2×-4)-3(×-2)=×-9

4×-8-3×-2=×-9

4×-3×-×=-9+8+2

×=1

D x - x= 5 4,3,6/2

4 3 6 2,3,3/2 multiplica

1,3,3/3

1,1,1 /12

3x - 4x=10

12 12 12

3×-4×=10

×=10

E x-2 - x-1= 2 9,6,3/3

9 6 3 3,2,1/2 multiplica

3,1,1/3

1,1,1/18

2×-4 - 3×-3= 12

18 19 18

2×-4 - 3×-3=12

2×-3×=12+4+3

×=19

F x - x-1 = 1 6,8/2

6 8 3,4/2

3,2/2 multiplica

3,1/3

1,1/24

4x - 3x-3 = 24

24 24 24

4×-3×=24+3

×=27