Решите уравнение 1. 8.4-(x-72)=8.6 2. -1.3+(x-4.8)=-7.1 - вопрос №5584428184728621348713336710045 от Sanyaaa12 04.03.2020 00:36

Question

Математика: Решите уравнение 1. 8.4-(x-72)=8.6 2. -1.3+(x-4.8)=-7.1 3. 3.3-(x-6.7=100 4. -5(0.8x-1.2)=-x+7.2 5.3(4x-8)=3x-6

Sanyaaa12 · Answer

8.4-(x-72)=8.68,4-х+72=8,6х=71,8-1.3+(x-4.8)=-7.1-1,3+х-4,8=-7,1х=-7,1+4,8+1,3=-13.3-(x-6.7=1003,3-х+6,7=100х=100-10х=90-5(0.8x-1.2)=-x+7.2-4х+6=-х+7,2-3х=1,2х=-0,43(4x-8)=3x-612х-24=3х-69х=18х=2...