Question

AYUDA DOY CORONITA

1)RODEAR CON COLOR EL VALOR CORRECTO DE LA X. VERIFICAR:
a. 3.X – 4 = 20 X = 1 X=8 X=-2
b. 2.X + 5 = 19 X=3 X=5 X=7
c. 5.X – 3.X = 7 + 3 X=5 X=-3 X=0
d. 4.X + 9 + X = 24 X=4 X=5 X=3
e. 8.X – 7 + X – 5.X = 21 X=7 X=4 X=-1

Answer 1

Respuesta:

a. 3.X – 4 = 20 X = 1 X=8 X=-2

3x=20+4

x= 24/3

x= 8

b. 2.X + 5 = 19 X=3 X=5 X=7

2x+5= 19

2x= 19-5

x= 14/2

x= 7

c. 5.X – 3.X = 7 + 3 X=5 X=-3 X=0

5x-3x=7+3

2x=10

x=10/2

x= 5

d. 4.X + 9 + X = 24 X=4 X=5 X=3

4x+9+x=24

5x= 24-9

x= 15/5

X= 3

e. 8.X – 7 + X – 5.X = 21 X=7 X=4 X=-1

8x-7+x-5x=21

4x= 21+7

x= 28/4

x= 7