Question

ayúdeme porfa doy puntos xd​

Answer 1

Respuesta:

1) 5x - 12 = 3

5x = 3 + 12

x = 15:5

x = 3

2) 5t + 5 = 3t + 7

5t - 3t = 7 - 5

2t = 2

t = 2 : 2

t = 1

3) 3(2x + 1) = -9

6x + 3 = -9

6x= -9 - 3

x = -12 : 6

x = -2

4) 2(2x - 5) = 3(x+1) - 4

4x - 10 = 3x + 3 - 4

4x - 3x = 3 - 4 + 10

X = 9