Question

resuelve las sigtes ecuaciones a) 3×+30=80+2× b) 10-5×=18-3× c) 4×+3=48+×

Answer 1

Resolver.

3x + 30 = 80 + 2x
3x- 2x = 80 - 30
x = 50


10 - 5x = 18 - 3x
10 - 18 = - 3x + 5x
- 8 = 2x
- 8/2 = x
- 4 = x


4x + 3 = 48 + x
4x - x = 48 - 3
3x = 45
x = 45/3
x = 15