Equations

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables.

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

If Julian has 21 dinosaurs and they have 50 dinosaurs in total, how many dinosaurs does Melanie have?

Back

g = 29

Front

What is the solution to the equation a - 2.1 = 5.8?

Back

a = 7.9

Front

What is the solution to the equation t - 7 = 2?

Back

t = 9

Front

What is the solution to the equation c - 1 = 8?

Back

c = 9

Front

What is the solution to the equation c/9 = 8?

Back

None of these match my answer.

Front

What is a variable in an equation?

Back

A variable is a symbol, often a letter, that represents an unknown value in an equation.

Front

What is the first step in solving the equation x + 5 = 12?

Back

Subtract 5 from both sides to isolate x.

Front

What does it mean to isolate a variable?

Back

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