Question

Genteeeeeee preciso para amanhaaaaa
Por favor
Me ajudem

Answer 1

a)
2(x - 2) + 5(x - 3) = 2(x + 5)
2x - 4 + 5x - 15 = 2x + 10
- 19 + 5x = 10
5x = 29
x = 29/5

b)
7(3x + 9) - 4(5x + 16) = 0
21x + 63 - 20x - 64 = 0
x - 1 = 0
x = 1

c)
20(y + 9) + 15(y + 15) + 12(y + 7) = 480
20y + 180 + 15y + 75 + 12y + 84 = 480
47y + 339 = 480
y = 141/47
y = 3

d)
p - 5 + 2(2 - p) - 2(p - 6) = 18
p - 5 + 4 - 2p - 2p + 12 = 18
- 3p + 11 = 18
- 3p = 7
p = - 7/3

e)
4(4x + 1) - 3(2 - 3x) = 2(26 - x)
16x + 4 - 6 + 9x = 52 - 2x
25x - 2 = 52 - 2x
27x = 54
x = 54/27
x = 2