5.1a Review of Basics

Front

What is the result of substituting m=8, n=6, p=4, q=2 into the expression n+q-p?

Back

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Front

How do you isolate w in the equation 15 = w - 6?

Back

Add 6 to both sides

Front

What is the result of substituting x=3 into the expression 3x+1?

Back

10

Front

What is the value of x in the equation x + 12 = 17?

Back

5

Front

What is the result of substituting k=7 and h=5 into the expression k+h×3?

Back

22

Front

Define substitution in algebra.

Back

Substitution is the process of replacing a variable with a number or another expression.

Front

What is the principle of balancing equations?

Back

To maintain equality, whatever operation is performed on one side of the equation must also be performed on the other side.

Front

What does it mean to isolate a variable?

Back

To isolate a variable means to manipulate an equation so that the variable is on one side and all other terms are on the opposite side.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What is the value of 2x if x=4?

Back

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