4 years ago

Which point is a solution to equation 2x-y=4

Mathematics

2 answers:

Elena L [17]4 years ago

5 0

=0 is the answer to the equation

pentagon [3]4 years ago

5 0

Answer:

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Step-by-step explanation:

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Which expression could be substituted for y in the second equation to find the value of x?

EastWind [94]

value of x is $x=-\frac{29}{4}$ and value of y is $y=-\frac{9}{2}$

Step-by-step explanation:

We need to find Which expression could be substituted for y in the second equation to find the value of x

The given equations are:

$2x-y=-10\,\,\,(1)2x - 3y= -1\,\,\,\,(2)$

For putting value of y in second equation, we will find from equation 1

From equation 1:

$2x-y=-10\\-y=-10-2x\\y=10+2x$

Putting value of y i.e y=10+2x in equation (2) to find value of x

$2x-3y=-1\\2x-3(10+2x)=-1\\2x-30-6x=-1\\-4x=-1+30\\-4x=29\\x=\frac{29}{-4}\\x=-\frac{29}{4}$

So, now finding value of y by putting value of x= -29/4 in eq(1)

$2x-y=-10\\2(-\frac{29}{4})-y=-10\\-\frac{29}{2}-y=-10\\-y=-10+\frac{29}{2}\\ -y=\frac{-20+29}{2}\\ -y=\frac{9}{2}\\ y=-\frac{9}{2}$

So, value of x is $x=-\frac{29}{4}$ and value of y is $y=-\frac{9}{2}$

Keywords: System of equations

Learn more about System of equations at:

#learnwithBrainly

6 0

4 years ago

Find the domain of f(x)=7/x^2-9

LiRa [457]

the domain of the equation is this

{ x | x ≠ 0 }

but I'm not entirely sure this is correct

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3 years ago

If f(x)= x/1+x, what is the value of f(x+h)

Alik [6]

Answer:

f(x+h)=

Step-by-step explanation:

f(x+h)=x+h+x+h

2h+2x
2(h+x)

<h3>stay safe healthy and happy.</h3>

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3 years ago

Is the ratio 4.2:1.5 proportional to the ratio 12.6:4.5

VashaNatasha [74]

That's true they are proportional

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3 years ago

A rectangular garden has a walkway around it. The area of the garden is 6(3.5x+2.5) The combined area of the garden and the walk

amid [387]

First terms answer is=39x+39
Second term answer is=90x+15
Check it out how I solved and your welcome:D

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3 years ago