Question

Ayudaaa por favor.
.
.
.
.

.
.
.
.
.
.
.
.
.
.

Answer 1

Respuesta:

2 (x + 1) = 5 (x - 2)

2x + 2 = 5x -10

2 + 10 = 5x - 2x

12 = 3x

12/3 = x

4 = x

9y - 4 = 3y - 16

9y - 3y = -16 + 4

6y = -12

y = -12/6

y = -2

10 (2a + 1) = 2 (2a + 3)

20a + 20 = 4a +6

20a - 4a = 6 - 20

16a = -16

a = -16/16

a = -1

7 (3x) = -63

21x = -63

x = -63/21

x = -3

6 (b + 2b) = 24 (2)

6b + 12b = 48

18b = 48

b = 48/18

b = 2.67