16-04-2020
Mathematics

contestada

Simplify 2x – 9y + 4x + 11y by combining like terms and then evaluate at x = -2
and y = 4.

Respuesta :

16-04-2020

Step-by-step explanation:

= 2x - 9y + 4x + 11y

First of all combining like terms

So

= 2x + 4x - 9y + 11y

= 6x + 2y

Now putting values

= 6 (-2) + 2(4)

= - 12 + 8

= - 4

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