tiagopino13 tiagopino13 30-03-2024 Matemáticas contestada 10. 7 (18 – x) – 6 (3 – 5x) = - (7x + 9) – 3 (2x + 5) – 12 11. 3 (x - 1) = x+11 12. 3x + 7 = 2 (8 + x) 13. 5 (4 + x) = 7x - 2 14. 5 (3x + 2) =8 (9 - 2x)