Question

Calcule:
a)7-2x=4+x
b)5t-6=3-4t
c)9-3x=-5+4x

Obs:se possível a conta

Answer 1

a) 7 - 2x = 4 + x
-2x - x= - 7 + 4
- 3x = - 3
x = -3/-3 {- - = +}
x = 1

b) 5t - 6 = 3 - 4t
5t + 4t = 3 + 6
9t = 9
t = 9/9
t = 1

c) 9 - 3x = - 5 + 4x
- 3x - 4x = - 5 - 9
- 7x = - 14
x = -14/-7 {- - = +}
x = 2