Solving 2 step Equations

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a two-step equation?

Back

To isolate a variable, perform the inverse operations in reverse order: first undo addition or subtraction, then undo multiplication or division.

Front

Solve for x: 2x + 3 = 11

Back

x = 4

Front

What is the first step to solve the equation 5x - 2 = 18?

Back

Add 2 to both sides to get 5x = 20.

Front

Solve for y: 3y + 4 = 19

Back

y = 5

Front

What does it mean to 'write an equation' based on a word problem?

Back

It means to translate the information given in the problem into a mathematical equation that can be solved.

Front

Write an equation for: 12 more than twice a number is 30.

Back

2x + 12 = 30

Front

Solve for a: 15 = 2a + 7

Back

a = 4

Front

What is the solution to the equation 3c + 5 = 23?

Back

c = 6

Front

How do you check if your solution to an equation is correct?

Back

Substitute the solution back into the original equation to see if both sides are equal.