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kelbruggie
03.09.2020 •
Mathematics
Given that x = −2 and y = 5, what is the value of 3x+4y−2
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Ответ:
12
Step-by-step explanation:
Note:
x = -2 ; y = 5
Plug in -2 for x and 5 for y.
3(-2) + 4(5) - 2
Remember to follow PEMDAS. First solve for multiplication, then combine:
3 * -2 = -6
4 * 5 = 20
-6 + 20 - 2
Combine like terms:
20 - 6 - 2 = 12
12 is your value.
~
Ответ:
12
Step-by-step explanation:
When answering these types of problems make sure you simplify the expression before substituting
In this case it is not necessasry so substitute x for -2 and y for -5. The expression is now ...
3(-2) + 4(5) - 2
Now just add like term
-6 + 20 -2
12
Ответ: