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2 years ago

Need help plzzzzz The first one and the second one plZ

Mathematics

1 answer:

solong [7]2 years ago

4 0

From both sides of the equation, 4 should have been subtracted.

The solution should look like this:

X + 4 = 28

From each side, subtract 4 :

I'd like to demonstrate more steps, but the answer has already popped up, so there aren't any more steps.

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3 years ago

Find a solution to the linear equation y=−x+7 by filling in the boxes with a valid value of x and y.

sladkih [1.3K]

Answer:

$(x,y) = (0,7)$

$(x,y) = (3,7)$

Step-by-step explanation:

The question and the attached image are different. However, the attached image answers the question y = -4 correctly.

So, I will solve for: $y = -x + 7$

Given

$y = -x + 7$

Required

Possible values of x and y

Let x = 0:

$y = -x + 7$

$y = -0 + 7$

$y = 7$

So, we have:

$(x,y) = (0,7)$

Let y = 4

$y = -x + 7$

$4 = -x + 7$

Collect Like Terms

$x = -4 + 7$

$x =3$

So, we have:

$(x,y) = (3,7)$

<em>So, all you need to do is: assume a value for either x or y, then solve for the other variable.</em>

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