isabellasurkau isabellasurkau
  • 14-12-2021
  • Mathematics
contestada

If
A
=
−
3
n
+
2
and
B
=
5
n
−
7
, what is the value of
A
−
B
, in simplest form?

Respuesta :

Hi1315
Hi1315 Hi1315
  • 14-12-2021

Answer:

-8n + 9

Step-by-step explanation:

Given that,

A = -3n + 2

B = 5n - 7

Before solving you have to know that,

( + ) × ( + ) = ( + )

( - ) × ( - ) = ( + )

( + ) × ( - ) = ( - )

Let us solve now.

A - B

-3n + 2 -(5n - 7)

-3n + 2 - 5n + 7

Combine like terms

-3n - 5n + 2 + 7

-8n + 9

Hope this helps you.

Let me know if you have any other questions :-)

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