Question

1)RESOLVA AS EQUAÇÕES ENCONTRADO O VALOR DE X
3×+5=8
9×+5=4×
4×-12=×
11×+17=10×+13
16×-1=12×+3

Answer 1

a)3x+5=8

3x=8-5

3x=3

x=3÷3

x=1

b)9x+5=4x

9x-4x= -5

5x= -5

x= -5÷5

x= -1

c)4x-12=x

4x-x=12

3x=12

x=12÷3

x=4

d)11x+17=10x+13

11x-10x=13-17

x= -4

e)16x-1=12x+3

16x-12x=3+1

4x=4

x=4÷4

x=1