6(7-x)=36 6(12-x)=36x 6(16+x)=1/36 8(18+x)=1/64 (1/7)7+x=49 - вопрос №455135967366123661613681816417749166362 от 287888 07.03.2020 14:25

Question

Математика: 6(7-x)=36 6(12-x)=36x 6(16+x)=1/36 8(18+x)=1/64 (1/7)7+x=49 (1/6)6+x=36 2x*3x=36 5(2x-1)*5(x-1)=5 (5/7)x=1,4 5x*2-x=0,4 решите .

287888 · Answer

1) 42-6x=36-6x=36-42-6x=-6x=12) 72-6x=36x-6x-36x=-72-42x=-72x=1.71...3) 96+6x=1/366x=1/36-966x=-95.9...x=-15.9...4) 144+8x=1/648x=1/64-144x=17.9...5) 7+1/7x=491/7x=42x=66) 6+1/6x=361/6x=30x=57) 6x^2=36x^2=6x=+-√68) (10x-5)*(5x-5)=550x^2-25x-50x^2+25-5=0-5=08) x=7/209) 10x-x=0.49x=0.4x=0.04......