9.120000000000001
Answer: 14.9-y+y+5.78 = 20.68
You combine like terms.
It is: 4k-10+7-7k combines to -3k-3
When you have an expression you have to simplify by eliminating all grouping symbols and combining like terms.
Simplify an Expression
1 - 5x + 7x is an expression, not an equation (no equals sign), so you cannot solve for x. You can, however simplify (combine like terms) and get 1 + 2x.
You combine like terms.
12t + 15
Combine like terms to give 3n + 2
To simplify expression 5x + 9 - 7x - 11, you can combine the x terms (5x - 7x) to get -2x, and combine the constant terms (9 - 11) to get -2. Therefore, the simplified expression is -2x - 2.
Combine like terms. 6x - 2y +7.
To simplify
It is: 4k-10+7-7k combines to -3k-3
simplify means to get an expression to its simplest form (a.k.a. combine like terms, add together constants) i.e. x + x + 5 + 3 simplified is 2x + 8
Learn the properties, and apply them! What properties you use depends on the specific situations; some examples include:* Combine like terms (terms with the same variables), e.g.: 4x + 5x = 9x * Factor expressions * Multiply factors, so you can combine them with other expressions. In a way, this is the opposite of the previous point.
Like Terms and Variables
You can combine like terms - combine the terms that have a "t" in them; separately, combine the terms that don't.
To simplify this expression, you combine your like terms (9y and 1y). 9y - 1y = 8y 8y - 25 is your answer. It can't be simplified any further than that.