10 – 7x = 2 - 8x help :)

Mathematics

2 answers:

vladimir2022 [97]4 years ago

5 0

Answer:

I'm guessing you need to find x so x = -8

Step-by-step explanation:

So lets take it step-by-step

I'll try to explain my best so try to understand it as best as possible or I could simplify it smaller for you

10-7x=2-8x

We move all terms to the left:

10-7x-(2-8x)=0

We add all the numbers together, and all the variables

-7x-(-8x+2)+10=0

We get rid of parentheses

-7x+8x-2+10=0

We add all the numbers together, and all the variables

x+8=0

We move all terms containing x to the left, all other terms to the right

x=-8

So next time you get a problem like this remember, You move all terms to the left. You add all the numbers together, and all the variables. You get rid of parentheses. You add all the numbers together, and all the variables. And lastly you move all terms containing x to the left, all other terms to the right.

If you need any more help let me know :)

Rudik [331]4 years ago

4 0

10-7x=2-8x

We move all terms to the left:

10-7x-(2-8x)=0

We add all the numbers together, and all the variables

-7x-(-8x+2)+10=0

We get rid of parentheses

-7x+8x-2+10=0

We add all the numbers together, and all the variables

x+8=0

We move all terms containing x to the left, all other terms to the right

x=-8

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What is the question of line that passes through the point (-2,8) with a slope of -3? Write the equation in point slope form.

enyata [817]

Answer:

y=-3x+2

Step-by-step explanation:

y=mx+b

8=-2(-3)+b

8=6+b

b=2

y=-3x+2

3 0

3 years ago

1/4 + 23/28 - 1 <br><br> please help

AnnZ [28]

Answer:

$\frac{1}{14}$

Step-by-step explanation:

$\frac{1}{4} + \frac{23}{28} - 1 = ?$

First off, let's change everything to a common denominator. This will allow us to add the fractions!

To find a common denominator, we find a number that both 4, 28, and 1 can go into. 28 is the best choice, as 4 goes into it 7 times, 28 goes into it once, and 1 goes into it 28 times.

Let's change the first fraction into a number with a denominator of 28!

$\frac{1}{4} * \frac{7}{7} = \frac{7}{28}$