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AlladinOne [14]
3 years ago
7

What is the first step in isolating the variable in this equation?

Mathematics
2 answers:
VLD [36.1K]3 years ago
6 0
It’s either subtract 75 from both sides or divide both sides by 1/2 but I’m pretty sure it’s subtract 75 from both sides
agasfer [191]3 years ago
5 0

Answer:

Subtract 75 from both sides.

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7x + 2y = -1<br> 3x – 4y = 19
jeka94

Answer:  Y = - 4 & x = 1

Step-by-step explanation:

Systems of linear equations: We will solve this using substitution but you can use 2 more ways.

7x + 2y = -1

2x - 4y = 19

Leave X  alone first: -------------------

10x - 2y = 18

10x/10 = 18 + 2y/10

x = 9/5 + y/5

Solve for y:

7(9/5 + y/5) + 2y = -1

63/5 + 7y/5 + 2y - 1

63/5 + 7y/5 = 10y/5 = -1

63/5 + 17y/5 = -1 (-5/5)

17y/5 = -68/5 (cancel the 5)

y = -68/17

y = - 4 (Your Answer)

7x + 2(- 4) = -1

7x + (-8) = -1

7x = 7

x =   1

CHECK=

7(1) + 2(-4) = -1

7+ (-8) = -1.

-1=-1

7 0
3 years ago
Read 2 more answers
A legal firm offers some services "pro bono", which means that they work for clients free of charge. The legal firm accepted 2%
Alexxandr [17]
I think it is 12600 is the answer
5 0
3 years ago
Read 2 more answers
Can you use simplest form to compare 8/10 and 3/5 explain
jolli1 [7]
Simplify 8/10
(4*2)/(5*2)
2/2=1

Thus,
8/10=4/5

Now, compare 4/5 and 3/5.
Hope this helps!

3 0
3 years ago
Read 2 more answers
What is the value of x?
scoray [572]

Answer:

x = 54.6 m

Step-by-step explanation:

Δ MAB and Δ MNP are similar, then corresponding sides are in proportion, that is

\frac{MA}{MN} = \frac{MB}{MP} , substitute values

\frac{80.5-35}{80.5} = \frac{x}{96.6}

\frac{45.5}{80.5} = \frac{x}{96.6} ( cross- multiply )

80.5x = 4395.3 ( divide both sides by 80.5 )

x = 54.6

8 0
3 years ago
Read 2 more answers
The length of the rectangular basketball court is 44 feet more than the width. If the perimeter of the basketball court is 288 f
Temka [501]
Let's first say that L=W+44

and then remember that perimeter is P=2L+2W

replace the L with W+44

we then get P=2(W+44)+2W, now I'll solve it

P=2W+88+2W
P=4W+88

substitute 288 for P

288=4W+88
200=4W
50=W

so now we now how wide the court is. add 44 to find the length which gives you L=94

as always plug the numbers back into your perimeter equation to ensure L and W are correct
8 0
3 years ago
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