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3 years ago

3x-4y=18 x 3y=-7 how do i solve this

1 answer:

8 0

3 times (2) gives 3x +9y = -21 (3)
(3) - (1) gives 13y = -39 
y = -3 
Sub. y=-3 into (2) 
x + -9 = -7 
x = 2

Answer = (2,-3)

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Step-by-step explanation:

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2 years ago

What is the converse of the conditional statement?

dem82 [27]

Answer:

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3 years ago

1. Write an expression that is equivalent to 15m - 12

Harlamova29_29 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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TEA [102]

Answer:

See explanation below

Step-by-step explanation:

Find the value of x in each of the following

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25(x-1) = (-x-2)^2

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3 years ago

(I need someone to answer fast please and a clear answer too so ill mark them as brainlyest) :)

AVprozaik [17]

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Step-by-step explanation:

Use the pythagorean theorem, we get that the height, or x, is

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4 0

3 years ago

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