Question

Resolver las siguientes ecuaciones
1) 11x +30=14x+21
2) 5x+3x=15
3) 29=x
4) x ala 2 +2=27
5) 3109+28x= -50

Answer 1

1) 11x + 30 - 11x = 14x + 21 - 11x
30 - 21 = 3x + 21 - 21
9 = 3x
9 ÷ 3 = x
3 = x

2) 5x + 3x = 15
8x = 15
x = 15÷8
x = 1,8

3) 29

4) × ^ 2 + 2 = 27
×^ 2 + 2 - 2 = 27 - 2
× ^ 2 = 25
x = 5

5) 3109 + 28x = -50
28x = -50 - 3109
28x = -3159
x = -3159 ÷ 28
x = 112.82..