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zheka24 [161]
3 years ago
10

Evaluate the following expression for the given values of the variables. Please explain i’m really struggling with this! 3m - 4n

; For m= -2 and n= -3 A) -6 B) 6 C) -18 D) 18
Mathematics
2 answers:
sergey [27]3 years ago
8 0

Answer:

<h3>\boxed{ \bold{ \sf{  \huge{ \boxed{6}}}}}</h3>

Option B is the correct option.

Step-by-step explanation:

Given, m = -2 and n = -3

Given expression : 3m - 4n

<u>If the value of variables of algebraic expressions are given, the value of the term it expression can easily obtained by replacing the variables with numbers.</u>

Let's solve:

\sf{3m - 4n}

Plug the values of m and n

\sf{ = 3 \times ( - 2) - 4 \times ( - 3)}

Multiply

\sf{ =  - 6 - ( - 12)}

When there is a ( - ) in front of a parentheses, change the sign

\sf{ =  - 6 + 12}

Calculate

\sf{  = 6}

Hope I helped!

Best regards!!

IRISSAK [1]3 years ago
7 0

Answer:

Hey there!

Given Expression: 3m-4n

Substitute: 3(-2)-4(-3)

Solve: -6+12

Simplify: 6

6 should be your final answer.

Let me know if this helps :)

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