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natka813 [3]
3 years ago
7

How do you check your work after finding x

Mathematics
1 answer:
Sergio039 [100]3 years ago
3 0

Answer:

replace the x with (*answer)

example 2x+5=13

say your answer is 4 then change it to 2(4)+5=13

and solve it should make the sum

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Step-by-step explanation: am here to help

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Solve for x 0°&lt;x&lt;360<br>3cos2x +sinx=1​
BartSMP [9]

Step-by-step explanation:

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:.x=90

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8 0
3 years ago
If A = 3x power 2+2y + 2 and B=6x power 2 - 8y + 1 then A+B and A-B​
ollegr [7]

Answer:

see explanation

Step-by-step explanation:

Given A = 3x² + 2y + 2 and B = 6x² - 8y + 1 , then

A + B

= 3x² + 2y + 2 + 6x² - 8y + 1 ← collect like terms

= 9x² - 6y + 3

-------------------------------

A - B

= 3x² + 2y + 2 - (6x² - 8y + 1) ← distribute parenthesis by - 1

= 3x² + 2y + 2 - 6x² + 8y - 1 ← collect like terms

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3 years ago
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Setler79 [48]
It equals 5/6 And the decimal form is 0.8333 and so on
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3 years ago
Read 2 more answers
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