Unit 1 Review Math

Front

Solve for x: 2(3x + 4) + 2 = 4 + 3x

Back

x = -2

Front

Identify the error in the distribution: 3(2x + 4) = 6x + 12

Back

Correct distribution: 3(2x + 4) = 6x + 12

Front

Store A charges $10 plus $0.25 per letter. Store B charges $16 plus $0.15 per letter. When will Store B cost less than Store A?

Back

x > 60

Front

Back

y = 18

Front

Find the error in the problem: 19 - 2k = 3k - 1; +3k; 19 + 1k = -1; -19; k = -20

Back

Instead of adding 3k they should subtract 3k

Front

What is the distributive property?

Back

a(b + c) = ab + ac

Front

Solve for x: 5x - 3 = 2x + 12

Back

x = 5

Front

What is a variable in algebra?

Back

A symbol used to represent an unknown value.

Front

What does it mean to isolate a variable?

Back

To get the variable alone on one side of the equation.

Front

Solve for x: 4(x - 2) = 16

Back

x = 6