Answer:
<h3>

</h3>
Step-by-step explanation:

Move 5x to left hand side and change it's sign
⇒
Move 3 to right hand side and change it's sign
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Collect like terms
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Subtract 3 from 21
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Divide both sides of the equation by -6
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Calculate
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Answer:
n=-27
Step-by-step explanation:
Step-By-Step on how to solve it is in the image shown below.
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Answer:
B
Step-by-step explanation:
The equations are:
2x + y - 7 = 0
and
1/3x + y -4 = 0
Let's rearrange the first to get:
y = -2x + 7
Putting this into the 2nd equation we get:

Now, y would be:

Solving the equation we see that there is 1 unique solution with 1 x value and another y values. That means, when graphing, the lines would intersect.
Answer choice B is right.
<u>Note:</u> Coincident means the same line and parallel means there would be no solution when solving
Answer:
a.240.15
Step-by-step explanation:
a.240.15
b.12.0075
c.252.1575
2.6 is the aswer.
Why?take the 2 number after the decimal the estimate