Question

Es urgente por fas ayúdenme doy coronita

Answer 1

Respuesta:

5x + 6= 21     3

-2x + 8= -2   -3

6x + 2= -16   -3

2x + 4= 6     -1

x + 4= 10      6

-x + 1= -8     -9

x - 5= 5       10

-4 + 2x= 0    2

6x= 24         4

2x + 4=0     2

4x + 2= 2 + 4    1

3x - 2= 16    6

24x = 48     2

6x + 12 -8= 13 + 5   2.3

2x - 34= -20   7

Answer 2

Respuesta:

a) 5x + 6 = 21 => x = 3

b) -2x + 8 = -2 => 5 = x

c) 6x + 2 = -16 => x = -3

d) 2x + 4 = 6 => x = 1

e) x + 4 = 100 => x = 96

f) -x + 1 = +8 => 9 = x

g) x - 5 = 5 => x = 10

h) -4 + 2x = 0 => x = 2

i) 6x = 24 => x = 4

j) 2x + 4 = 0 => x = -2

k) 4x + 2 = 2 + 4 => x = 1

l) 3x - 2 = 16 => x = 6

m) 24x = 48 => x = 2

n) 6x + 12 - 8 = 13 + 5 => x = 2.333... => x = 7 ÷ 3

ñ) 2x - 34 = -20 => x = 7

Explicación paso a paso:

Solución:

a) 5x + 6 = 21 => 5x = 21 - 6 => 5x = 15 => x = 15 ÷ 5 => x = 3

b) -2x + 8 = -2 => 2 + 8 = 2x => 10 = 2x => 10 ÷ 2 = x => 5 = x

c) 6x + 2 = -16 => 6x = -16 - 2 => 6x = -18 => x = -3

d) 2x + 4 = 6 => 2x = 6 - 4 => 2x = 2 => x = 2 ÷ 2 => x = 1

e) x + 4 = 100 => x = 100 - 4 => x = 96

f) -x + 1 = -8 => 8 + 1 = x => 9 = x

g) x - 5 = 5 => x = 5 + 5 => x = 10

h) -4 + 2x = 0 => 2x = 0 + 4 => 2x = 4 => x = 4 ÷ 2 => x = 2

i) 6x = 24 => x = 24 ÷ 6 => x = 4

j) 2x + 4 = 0 => 2x = 0 - 4 => 2x = -4 => x = -4 ÷ 2 => x = -2

k) 4x + 2 = 2 + 4 => 4x + 2 = 6 => 4x = 6 - 2 => 4x = 4 => x = 4 ÷ 4 => x = 1

l) 3x - 2 = 16 => 3x = 16 + 2 => 3x = 18 => x = 18 ÷ 3 => x = 6

m) 24x = 48 => x = 48 ÷ 24 => x = 2

n) 6x + 12 - 8 = 13 + 5 => 6x + 4 = 18 => 6x = 18 - 4 => 6x = 14 => x = 14 ÷ 6

=> x = 2.333... => x = 7 ÷ 3

ñ) 2x - 34 = -20 => 2x = -20 + 34 => 2x = 14 => x = 14 ÷ 2 => x = 7

Comprobación:

a) 5(3) + 6 = 21 => 15 + 6 = 21 => 21 = 21

b) -2(5) + 8 = -2 => -10 + 8 = -2 => -2 = -2

c) 6(-3) + 2 = -16 => -18 + 2 = -16 => -16 = 16

d) 2(1) + 4 = 6 => 2 + 4 = 6 => 6 = 6

e) 96 + 4 = 100 => 100 = 100

f) -9 + 1 = -8 => -8 = -8

g) 10 - 5 = 5 => 5 = 5

h) -4 + 2(2) = 0 => -4 + 4 = 0 => 0 = 0

i) 6(4) = 24 => 24 = 24

j) 2(-2) + 4 = 0 => -4 + 4 = 0 => 0 = 0

k) 4(1) + 2 = 2 + 4 => 4 + 2 = 6 => 6 = 6

l) 3(6) - 2 = 16 => 18 - 2 = 16 => 16 = 16

m) 24(2) = 48 => 48 = 48

n) 6(2.333...) - 34 = -20 => 14 - 34 = -20 => -20 = -20

ñ) 2(7) - 34 = -20 => 14 - 34 = -20 => -20 = -20