Grade 7 - Ch 4A - Equations Test Review

Front

Evaluate ab - c, if a = -3, b = -4 and c = -2

Back

14

Front

Solve for y: 7(1 - y) = -3(y - 2)

Back

y = 1/4

Front

Solve: 5x - 14 = 8x + 4

Back

x = -6

Front

Jim paid a gym membership fee of $50, plus $20 per month. Jim has paid a total of $290 to the gym. How many months has Jim been a member of the gym?

Back

50 + 20m = 290

Front

Solve: 4 = 2(x + 3)

Back

x = -1

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is a variable in mathematics?

Back

A variable is a symbol used to represent an unknown value in mathematical expressions and equations.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Front

What is the purpose of combining like terms?

Back

Combining like terms simplifies an expression by merging terms that have the same variable raised to the same power.