What is (3x+y)+(4x-y)+(7+y) ?

The solution to (3x+y)+(4x-y)+(7+y) is 7x+y+7

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simplify (3x+y)+(4x-y)+(7+y)

simplify

(3 x + y) + (4 x - y) + (7 + y)

7 x + y + 7

Solution steps

(3 x + y) + (4 x - y) + (7 + y)

Simplify

(3 x + y) + (4 x - y) + (7 + y) : 3 x + y + 4 x - y + 7 + y

= 3 x + y + 4 x - y + 7 + y

Group like terms

= 3 x + 4 x + y - y + y + 7

Add similar elements:

3 x + 4 x = 7 x

= 7 x + y - y + y + 7

Add similar elements:

y - y + y = y

= 7 x + y + 7

\frac{2 i}{i - 3} + \frac{i}{i + 1}

3 (\frac{x + 3}{2 x + 1}) + 2

(5 x^{- 3} y^{0})^{- 1}

\frac{25}{80}

(- 1)^{12}