Question

determine o valor de x
b)2x +6=-4
c)3x +5-2=-7+3
d)4x +2=-x-8

Answer 1

Resposta:

b). x=-5

c). x= -7/3

d). x= -2

Explicação passo-a-passo:

b) 2x +6=-4. 2x+6=-4

2x=-6-4. 2(-5)+6=-4

2x=-10. -10+6=-4

x=--10/2. -4=-4

x=-5.

c) 3x +5-2=-7+3. 3x +5-2=-7+3

3x =-7+3-5+2. 3(-7/3)+5-2=-7+3

3x = -4-3. -7+5-2=-4

x= -7/3. -2-2=-4

-4=-4

d) 4x +2=-x-8. 4x +2=-x-8

4x+x= -8-2. 4(-2)+2=-(-2)-8

5x= -10. -8+2=2-8

x= -10/5. -6=-6

x= -2