Solve One-Step (+/-) Equations

Front

What is a one-step equation?

Back

A one-step equation is an equation that can be solved in a single operation, either by addition or subtraction, to find the value of a variable.

Front

What must you do to both sides of an equation when solving it?

Back

You must do the SAME thing to both sides of the equation to maintain equality.

Front

Solve for x: x - 8 = -5

Back

x = 3

Front

Solve for x: x + 12 = 20

Back

x = 8

Front

Evaluate (solve): y - 4.6 = 12

Back

y = 16.6

Front

If Jane (j) is 3 years older than Sam (s), what is the equation if Jane is 12?

Back

s + 3 = 12

Front

What is the first step to solve the equation x + 5 = 10?

Back

Subtract 5 from both sides to isolate x.

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to get the variable alone on one side of the equation.

Front

Solve for x: 5 + x = 12

Back

x = 7

Front

Solve for y: y - 10 = 5

Back

y = 15