5x-7/5=3x+4/15 3-7x/6=4+3x/4 3x+1/7=8-6x/3 Rozwiąż równanie. / to kreska ułamkowa

26 ,18 ,67

5x-7/5=3x+4/15 / *15 3 (5x-7) = 3x+4 15x-21 = 3x+4 15x-3x = 4+21 12x = 25 / : 12 x = ¹²/₂₅ 3-7x/6=4+3x/4 4 (3-7x) = 6 (4+3x) 12-28x = 24+18x -28x-18x = 24-12 46x = 12 / : 48 x = ¹²/₄₈ x= ³/₁₂ 3x+1/7=8-6x/3 3 (3x+1) = 7 (8-6x) 9x +3 = 56 -42x 9x+42x = 56-3 51x = 53 / : 51 x = ⁵³/₅₁ x = 1 ²/₅₁