Question

Найдите корень уровнений:
А) (18х-11)-(10х+6)=6х
Б) (0,3у+1,1)-(0,5у+1)=5,6-у​

Answer 1

$1)(18x-11)-(10x+6)=6x<=>18x-11-10x-6=6x<=>\\<=>8x-17=6x<=>2x=17=>x=8,5\\2)(0,3y+1,1)-(0,5y+1)=5,6-y<=>0,3y+1,1-0,5y-1=5,6-y<=>\\<=>-0,2y+y=5,6-0,1<=>0,8y=5,5=>y=6,875$

Answer 2

$(18x-11)-(10x+6)=6x \\ 18x - 11 - 10x - 6 - 6x = 0 \\ 2x = 17 \\ x = \frac{17}{2} \\ x = 8.5$

$(0.3y + 1.1) - (0.5y + 1) = 5.6 - y \\ 0.3y + 1.1 - 0.5y - 1 + y = 5.6 \\ 0.8y = 5.6 - 0.1 \\ 0.8y = 5.5 \\ y = \frac{5.5}{0.8} \\ y = \frac{55}{8} \\ y = 6 \frac{7}{8} \\ y = 6.875$