91Ó°ÊÓ

Solve the equation. Check your solution.

$301=43s$

Match the equation with the corresponding question. Then solve

$n+3=12$ A. 3 times what number equals 12?

$3n=12$ B. What number divided by 3 equals 12?

$3=n+12$ C. What number plus 3 equals 12?

$\frac{n}{3}=12$ D. 3 equals what number plus 12?

Simplify the expression.$x+2x+3x$

Perform the indicated operation.

$-11.7\left(-6.82\right)$

Solve the equation. Check your solution.

$p\text{ }-\text{ }24\text{ }=-53$

Solve the equation. Check your solution.

$2x=18$

Solve the equation. Check your solution.

$-60=-5a$

Evaluate the expression. Justify each of your steps.

$1.3+6.8+2.7$

What question would you ask yourself if you want to solve the equation $−\text{ â¶Ä‰}4t\text{ â¶Ä‰}=\text{ â¶Ä‰}28$mentally?

Explain why $x-5=-7\text{ â¶Ä‰}and\text{ â¶Ä‰}x=12$are equivalent equations.