4. Откройте скобки и прицелите подобные слагаеме: a) 47 8. ( 920) 1) 6 (3x - 2) +4. (5x - 1); 21) 6 (8a - 20) + (3a - 76). ( 0.2); . (8а x) 4. (87 + 7) - 16. (21-3). 3) 7. (4x - 3) + (8 5) б) . (12 - 21y) + зу; 17.(3-40) 14 (512) c) 3. (2128 (2x - 3) мі TY) Mome!
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