Question

resolva essas questao pra min porfavor   

2x-5=16




2 3x-1=32 2x

3x-1=81

3x+3x.4=45


4x-12.2x+32=0

Answer 1

2x-5 = 16 

2x = 16-5

2x = 11

x = $\frac{11}{2}$

b) 3x-1 = 81

3x = 81-1

3x = 80

x = $\frac{80}{3}$

c) 3x+3x.4 =45

3x + 12x = 45

15x = 45

x = $\frac{45}{15} = 3$

d) 4x-12.2x+32 = 0

4x - 24x = -32

-20 x = -32

x = $\frac{32}{20} = \frac{8}{5}$

e) 2.3x-1 = 32.2x

6x - 1 = 64x

6x - 64x = 1

-58x = 1

x = $- \frac{1}{58}$