Ecuaciones de Primer Grado (los arquimedes)

1. x + 4 = 28      x= 24
2. y - 6.5 = 31    y= 37.5
3. 8z = 40 + 3z    z= 8
4. 10x = - 5x + 60    x= 4
5. - 15y + 3 = - 36 - 18y  y= -13
6. 2x + 4 + (3x - 4) = 3x + 12  x= 6
7. 4(3x + 2) - 8 = 5(2x + 3) + 5  x=10
8. 15x - 40 - 5x - 20 = 0  x= 6
9. 16 - ( - 2x - 4) - (5x - 3x + 2) = - 4x - ( - 8x + 2)  x= -5
10. - (7x - 2 + 12) + ( - 5x - 3x + 4) = - ( - x + 7) - (6x - 4 - 7)  x=10/-6 =  5/3
11. - 18 - [ 3(x + 2) + 4] = 21 - [ 6( - 2x - 2) + 1]  x=40/3