Resolucio equacions primer grau [2]
| __ | 1. | -(x-1)-(3-5) = 2x-6 | | A. | 0 | | __ | 2. | -1,5x=30 | | B. | No té solució | | __ | 3. | -4(2x-3) -(x+1)=-8x+12-x-1 | | C. | -2 | | __ | 4. | 0,8x=0,96 | | D. | 5 | | __ | 5. | 0x=8 | | E. | -20 | | __ | 6. | 2(2x-1) / 4 = -4(-3x-2) / 2 | | F. | Identitat | | __ | 7. | 2(x+1)-4 = 3(x-2)-1 | | G. | 1,2 | | __ | 8. | 2(x2-1)+3x= 2x2+9x+10 | | H. | -36/40 = -9/10 | | __ | 9. | 2x+5-3x+7 = -4x+2-8-6x | | I. | 3 | | __ | 10. | 4x-6+3x-8 = 4x+6x-6-8 | | J. | -2 |
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Altres proves d'interés :