Question

решите уравнения в) г) ​

Answer 1

в) $-2(3x+4)+(6x+8)=4(5x-2)-(5x+8)$

$-6x-8+6x+8=20x-8-5x-8$

$0=15x-16$

$15x-16=0$

$15x=16$

$x=\frac{16}{15} = 1\frac{1}{15}$

Ответ: $1\frac{1}{15}$

г) $8(4-3y)-(7-2y)=-(6+3y)+8(y-2)$

$32-24y-7+2y=-6-3y+8y-16$

$2y-24y+3y-8y=-6-16+7-32$

$-27y=-47$

$27y=47$

$[tex]y=\frac{47}{27} = 1\frac{20}{27}$[/tex]

Ответ: $1\frac{20}{27}$