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3 years ago

Someone please help me!!!! step by step instructions

Mathematics

2 answers:

dimulka [17.4K]3 years ago

4 0

8x+3=13+x
8x-x=13-3 (you put the x on the right to the left side it becomes negative, as well as the 3 on the other side. The goal is to isolate the x's)
7x=10
x=10÷7
x=10/7 or about 1.43

Vitek1552 [10]3 years ago

3 0

Answer:

10/7 or we could write it as 1 3/7

Step-by-step explanation:

8x + 3 = `13 + x

Subtract x from both sides

8x - x + 3 = 13 + x - x

7x + 3 = 13

Subtract 3 to both sides

7x + 3 - 3 = 13 - 3

7x = 10

Divide both sides by 7

7x/7 = 10/7

x = 10/7

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Solve the equation. Show your work. 45 = 3b + 69

Cerrena [4.2K]

There should be no problem in finding the value of the unknown variable "b" in the equation given in the question.The equation is solvable for finding the value of "b" because it is the only unknown variable in the single equation that is given in the question.
45 = 3b + 69
Let us reverse both sides of the equation first. then, we get
3b + 69 = 45
3b = 45 - 69
3b = - 24
b = - (24/3)
= - 8
So from the above deduction, we can easily conclude that the value of b in the given equation is -8.

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3 years ago

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Bond [772]

Step-by-step explanation:

To write a polynomial in standard form, put the degree that are the greatest first

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${x}^{5} + 4 {x}^{3} - 3 {x}^{2} + 10$

Remember constant are numbers that you learned back in elementary,

Numbers like 10,90,4,1,0,-3 etc.

Remember that constant are basically represented like this

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1 year ago

Luis put out

solniwko [45]

Answer:

Step-by-step explanation:

Find out how much pie was leftover from each pie:

Apple pie: 3/4, 4 - 3 = 1, 1/4

Blackberry: 1/2, 2 - 1 = 1, 1/2

Blueberry: 1/8, 8 - 1 = 7, 7/8

Cherry: 5/8, 8 - 5 = 3, 3/8

Peach: 3/4, 4 - 3 = 1, 1/4

There are 1/4, 1/2, 7/8, 3/8, and 1/4 pies left. The LCD if these numbers is 8, since 2*4 = 8, 4*2 = 8, and 8*1 = 8

1/4 = 2/8

1/2 = 4/8

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2 years ago

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Dafna1 [17]

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2 years ago

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EastWind [94]

Answer:x = 7

Step-by-step explanation:

Similar figures have sides that are proportional. Setting up a proportion for the sides of the figures will help solve for 'x':

Cross-multiply: 3(x + 1) = 6(x - 3)

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