Question

a.8x + x = 156 – 75
b. 5x + 5 = 3x + 25
c. 36 = 2x + 18
d. 5 (3x – 2) = 2 (x + 4)
son ecuaciones ayuda plis

Answer 1

b. 5x-3x=25-5 - 2x=-20

c. 2x=18-36 2x= -18

d. 15x- 10= 2x+8

15x- 2x = 8+10

13x= 18

Answer 2

Respuesta:

a.

$8x + x = 156 - 75 \\ 9x = 81 \\ x = 81 \div 9 \\ x = 9$

b.

$5x + 5 = 3x + 25 \\ 5x - 3x = 25 - 5 \\ 2x = 20 \\ x = 20 \div 2 \\ x = 10$

c.

$36 = 2x + 18 \\ 36 - 18 = 2x \\18 = 2x \\ x = 18 \div 2 \\ x = 9$

d.

$5(3x - 2) = 2(x + 4) \\ 15x - 10 = 2x + 8 \\ 15x - 2x = 8 + 10 \\ 13x = 18 \\ x = 18 \div 13 \\ x = 1.38$

Explicación paso a paso:

corona gracias