Question

a) 3(x + 2) + 4(x + 3) - 10 = 5(x + 4)

Answer 1

3x+6+4x+12-10=5x+20
7x+8=5x+20
7x-5x=20-8
2x=12
x=12/2
x=6

Espero te sirva :)

Answer 2

Explicación paso a paso:

3(x+2)+ 4(x+3) - 10 = 5(x+4)

3x+6 + 4x+12 - 10 = 5x+20

3x+4x-5x. = +20 - 6 - 12 + 10

12x = +12

x = 12 ÷ 12

x = 1