Question

equações
5x-1=9
3x+5=x-5
10x-1=4x+4

Answer 1

5x-1=9
5x = 9+1
5x = 10
x = 10/5
x = 2

3x + 5 = x-5
3x -x = -5 -5
2x = -10
x = -10/2
x = -5


10x -1 = 4x+4
10x -4x = 4 + 1
6x = 5
x = 5/6