Question

ПОМОГИТЕ ПЖ
МНОГО БАЛЛОВ ​

Answer 1

1.

• $3=\frac{6}{2}$
• $5=\frac{15}{3}$
• $13=\frac{52}{4}$
• $11=\frac{22}{2}$
• $21=\frac{105}{5}$

2.

• $\frac{y}{7} = 9\\7*\frac{y}{7} = 7*9\\y=7*9\\y=63$
• $\frac{15}{y} = 3\\15=3y\\3y=15\\y=5$

• $\frac{x+4}{8} = 11\\x+4=88\\x=88-4\\x=84$

• $\frac{42}{x-2} = 7\\42=7(x-2)\\6=x-2\\x=6+2\\x=8$