### The Alex Scribe

SCRIBE

Today in class we defined expression and equation and we also learned how to solve algebraic addition and subtraction questions by balancing.

An expression is a question with a variable.

An equation is a question with an equal sign.

E.G.1 X+5=10

You have to balance it.

If it's addition you turn it to a negative.

Then you add the negative to the end of the 10.

Forget the positive and negative 5's.

Focus on the question at the end.

X+5=10-5

-5

10-5=X

X=5

E.G.2 X-5=10

You have to balance it again.

Turn the negative to positive.

Add the positive 5 to the end.

Forget everything except the end.

X-5=10+5

+5

10+5=X

X=15

Today in class we defined expression and equation and we also learned how to solve algebraic addition and subtraction questions by balancing.

An expression is a question with a variable.

An equation is a question with an equal sign.

E.G.1 X+5=10

You have to balance it.

If it's addition you turn it to a negative.

Then you add the negative to the end of the 10.

Forget the positive and negative 5's.

Focus on the question at the end.

X+5=10-5

-5

10-5=X

X=5

E.G.2 X-5=10

You have to balance it again.

Turn the negative to positive.

Add the positive 5 to the end.

Forget everything except the end.

X-5=10+5

+5

10+5=X

X=15

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