3 years ago

What do you do when the x is a negative but the answer for x is a positive?

1 answer:

4 0

Just switch the negative sign over to the answer. so if you had -x = 6, then just switch the sign over to the 6. You would have the answer of x=-6, which is the same thing as -x=6

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the sum of three times one number, x, and five times a second number,y, is 77. if the sum of the two numbers is 19, find the two

HACTEHA [7]

Answer:

x=9, y=10. (9, 10). The two numbers are 9 and 10.

Step-by-step explanation:

3x+5y=77

x+y=19

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

3x+5y=77

-3(x+y)=-3(19)

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

3x+5y=77

-3x-3y=-57

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2y=20

y=20/2

y=10

x+10=19

x=19-10

x=9

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The perimeter of a rectangle is 120 inches. It's length is 43 inches. Write and solve a number sentence to find the width

Mashutka [201]

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3 years ago

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Mazyrski [523]

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Step-by-step explanation:

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lakkis [162]

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pashok25 [27]

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