We need to start by defining a few things‌ What is a variable?
Circle the variable in each of these examples:
+ 5 = 15
a+2=8
-7=3
x – 4 = 10
= So one side has to equal the other side, right? To make both sides equal, we have to use operations ( + - x ). What we do to one side, we must do to the other. So… Solve the equation x – 20 = 3
Solve the equation p + 5 = 12
Evaluate the expression for x = 20
Evaluate the expression for x = 5
x–3
25 + x
Solve the expressions to find the corresponding letters for the blanks – this will help you solve the secret phrase on the bottom of the page! The space below is for you to solve each expression.
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12
9
3
10
15
2
7
18
19
22
1
5
4
24