Solving Algebraic Expressions with One Variable Two Terms

Solve for x

• x = 2

• x = 0

• x = 9

• x = -2

6x-9x-4=-2x+2

Solve for x. Enter the number only. If necessary, use decimal form (no fractions).

Solve for x. Enter the number only. If necessary, use decimal form (no fractions).

What does x equal?

• x=1/5

• x=9

• x=5

• x=9/5

2x-5=19

Solve for x. Enter the number only. If necessary, use decimal form (no fractions).

How do you prove that your solution is correct? What is your success criteria for solving equations?

• I don't need to check: it's probably right!

• Substitution: plug the solution in for x and verify that the number sentence is true.

½x + ⅓x = 5

• x = ⅕

• x = 1

• x = 5

• x = 6