Решить уравнение 7(1.4x+1.8)-27.6=10.1x 0.3(5x-7)=3(0.2x+3.2) - вопрос №38843667141827610103573023221237285 от nikitka199821 23.05.2020 03:16

Question

Математика: Решить уравнение 7(1.4x+1.8)-27.6=10.1x 0.3(5x-7)=3(0.2x+3.2) 2(1.2x+3.7)-2.8=5.2x

nikitka199821 · Answer

7(1.4x+1.8)-27.6=10.1x9,8x+12,6-27,6=10,1x9,8x-15=10,1x10,1x-9,8x=-150,3x=-15x=-15:0,3x=-50 0.3(5x-7)=3(0.2x+3.2)1,5x-2,1=0,6x+9,61,5x-0,6x=9,6+2,10,9x=11,7x=11,7:0,9x=13 2(1.2x+3.7)-2.8=5.2x2,4x+7,4-2,8=5,2x2,4x+4,6=5,2x5,2x-2,4x=4,62,8x=4,6x=4,6:2,8x=...