7학년 2분기 시험

Evaluate each expression for the given values.

1. 1
   $8x-12$ when $x=-4$
2. 2
   $4-8p$ when $p=-7$

Simplify each expression.

1. 3
   $8n+2+n+2+2n$ 
2. 4
   $-1-5m+7m+6-5m$ 
3. 5
   $-8.4p-1+1.3p$ 
4. 6
   $(6n+2)-(7n+6)$ 
5. 7
   $(-7n-7)-(-n+2)$ 

Use the distributive property to write each expression without parentheses.

1. 8
   $7(3n+7)$ 
2. 9
   $-8(2k-7)$ 

Factor out the greatest common factor.

1. 10
   $10a-14$ 
2. 11
   $28n+32$ 

Solve for the variable.

1. 12
   $8x+4=76$
2. 13
   $21-2x=13$
3. 14
   $-4k+4=-12$
4. 15
   $\frac{y}{5}+5=-1$
5. 16
   $-3(y+5)=-39$
6. 17
   $8(m-9)=-200$
7. 18
   $\frac{2}{3}n+4=16$
8. 19
   $\frac{1}{2}m+3=-1$
9. 20
   $-3p-5p+19=-5$
10. 21
    $9x+3x-18=222$

Write an equation and solve it.

1. 22
   A gym charges a $\text{\$}25.00$ sign-up fee plus $\text{\$}20.00$ per month. Maya paid $\text{\$}265.00$ in all. How many months did she pay for?
2. 23
   A rectangle has a perimeter of $60$ cm. Its length is $24$ cm. What is its width?

Write the inequality shown by each graph. Use x.

1. 24
   Inequality: 
2. 25
   Inequality: 

Solve each inequality.

1. 26
   $m+2>-2$
2. 27
   $-6p>54$
3. 28
   $12-2p\le 8$
4. 29
   $7n-6\le 29$