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olga55 [171]
3 years ago
12

Rewrite the equation in standard form : y=2x=7

Mathematics
1 answer:
e-lub [12.9K]3 years ago
6 0

Answer:

2x - y = -7

Step-by-step explanation:

The equation y = 2x+7 needs to be written in standard form Ax+By=C where A must be positive.

To convert to standard form, subtract 2x from both sides.

-2x + y = 7

Multiply each term by -1.

-1(-2x + y =7)

2x - y = -7

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When you subtract a number, you get the same results as when you add the opposite number. Why?
lapo4ka [179]

Answer:

Step-by-step explanation:

Well, the opposite of a number is the same number with the opposite sign. For example, the opposite of -1 is 1.

So, say we have an equation where we're subtracting a number, for example, 2-1, which obviously equals 1. Now, if we add the opposite of 1 to 2, we get the equation 2+(-1) which still equals 1.

I hope this helps!

4 0
2 years ago
Solve the following inequality for mm. Write your answer in the simplest form.<br> 10m − 3 &gt; 6m+1
Georgia [21]

Answer:

m > 1

Step-by-step explanation:

Given: 10m − 3 > 6m+1

Add 3 to both sides: 10m > 6m + 4

Subtract 6m from both sides: 4m > + 4

Divide both sides by 4: m > 1

3 0
2 years ago
Read 2 more answers
6th out 10 questions
kicyunya [14]

The ratio would be C=16/20

6 0
3 years ago
Read 2 more answers
-5(x+2y)+15(x+2y);x7and y=-7
Nat2105 [25]
I believe your answer should be 105x squared-1475x+70
sorry i'm not really sure how to put the little two above the first x but my answer is mathematically correct.
6 0
3 years ago
pablo will rent a car for the weekend. he can choose one of two plans. the first plan has an initial fee of $55.96 with addition
kow [346]

Answer:

200 miles

Step-by-step explanation:

First, set up the equations.

plan 1: initial fee of $55.96, $0.12 per mile

  • y = 0.12x + 55.96

plan 2: initial fee of $63.96, $0.08 per mile

  • y = 0.08x + 63.96

We want to know at what distance will the cost be the same. So, set the equations equal to each other.

0.12x + 55.96 = 0.08x + 63.96

Combine the variables.

0.04x + 55.96 = 63.96

Combine the constants.

0.04x = 8

Divide by 0.04 to isolate x.

x = 200 miles

Check by plugging x back into each equation.

y = 0.12(200) + 55.96

y = 24 + 55.96

y = $79.96

y = 0.08(200) + 63.96

y = 16 + 63.96

y = $79.96

You are correct!

8 0
3 years ago
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