Question

resuelve las siguientes ecuaciones:
1: 4x = 12
x =

2: 5x - 3 = 66 + 2x
x =

3: 9x - 3 = 3 * (X-2) + 13
x =

Answer 1

1: 4x=12

x=12/4

x=3

2: 5x-3=66+2x

5x-2x=66+3

3x=69

x=69/3

x=23

3: 9x-3=3(x-2)+13

9x-3=3x-6+13

9x-3=3x+7

9x-3x=7+3

6x=10

x=10/6

x=5/3