Question

resolva as equações do 1° grau a) 3(×-8)=2(×+4) b) 2(×+6=×+10. c) 5(×-4)=3(×+2) d) 3×+4=21 e) 7×-1=6×+3 f) 2×+16=×-3. me ajudem pfvrrrr​

Answer 1

Explicação passo-a-passo:

3(×-8)=2(×+4)

3x-24=2x+8

3x-2x=8+24

x=32

__________

2(×+6)=×+10

2x+12=x+10

2x-x=10-12

x=>-2

__________

5(×-4)=3(×+2)

5x-20=3x+6

5x-3x=6+20

2x=26

x=26/2

x=>13

__________

3×+4=21

3x=21-4

3x=17

x=>17/3

__________

7×-1=6×+3

7x-6x=3+1

x=>4

__________

2×+16=×-3

2x-x=-3-16

x=>-19