What is expand x+2y-4.2x+y-5 ?

The solution to expand x+2y-4.2x+y-5 is -3.2x+3y-5

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expand x+2y-4.2x+y-5

expand

x + 2 y - 4.2 x + y - 5

- 3.2 x + 3 y - 5

Solution steps

x + 2 y - 4.2 x + y - 5

Group like terms

= x - 4.2 x + 2 y + y - 5

Add similar elements:

x - 4.2 x = - 3.2 x

= - 3.2 x + 2 y + y - 5

Add similar elements:

2 y + y = 3 y

= - 3.2 x + 3 y - 5

A (3, 5) y B (5, - 3)

(1, 0, 1) x (2, 1, - 1)

(4 + e)^{3}

(e^{2 x} + 6) (e^{2 x} - 4)

\frac{1}{2} (- cos (x) + 1 = p (x))

What is expand x+2y-4.2x+y-5 ?
The solution to expand x+2y-4.2x+y-5 is -3.2x+3y-5