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3 years ago

What is the value of x in the equation 7(4x+1)-3x=5x-13

Mathematics

2 answers:

postnew [5]3 years ago

8 0

Answer:

Step-by-step explanation:

7(4x +1) - 3x =5x - 13

28x +7 - 3x =5x - 13

25x +7 =5x - 13

25x - 5x =-13 - 7

20x =20

x=20 :20

x=1

skelet666 [1.2K]3 years ago

5 0

Answer:

in this equation, x = -1

Step-by-step explanation:

hope this helps!

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Which equation has no solution? A 2(x+1)=1 B 2(x+1)=2x+2 C 2(x+1)=2x+1 D 2(x+1)=2

Veseljchak [2.6K]

Answer:

C) 2(x+1)=2x+1 ( No Solution )

Step-by-step explanation:

$2(x+1)=1\\\cfrac{2\left(x+1\right)}{2}=\frac{1}{2}\\x+1=\cfrac{1}{2}\\ x+1-1=\frac{1}{2}-1\\\boxed{x=-\frac{1}{2}}$

$2(x+1)=2x+2\\2x+2=2x+2\\2x+2-2=2x+2-2\\2x=2x\\2x-2x=2x-2x\\0=0$

$2(x+1)=2x+1 \\2x+2=2x+1\\2x+2-2=2x+1-2\\2x=2x-1\\2x-2x=2x-1-2x\\0=-1\\\boxed{No\:Solution}$

$2(x+1)=2\\\cfrac{2\left(x+1\right)}{2}=\cfrac{2}{2}\\x+1=1\\x+1-1=1-1\\x=0$

4 0

2 years ago

Please help!!!!!!!<br> picture below

xxMikexx [17]

Answer:

the first equation could be something along the lines of $y=3x^{2}$ then the second is $y=3x^{2} -3\\$

Step-by-step explanation:

this is how shifting works

6 0

1 year ago

Jamie can work no more than 20 hours a week this summer. She needs to earn at least $256 a week to save enough

ivanzaharov [21]

She will have to get 12.8 per hour

8 0

2 years ago

????????????????????????

Fed [463]

A=10*8+((8-6)(15-10))/2
A=10*8+(2*5)/2
A=10*8+10/2
A=10*8+5
A=80+5
A=85 feet
Therefore the answer is D

Hope this helps :)

3 0

3 years ago

Zack wants a new skateboard that costs $98. He has a coupon for 20% off the original price. The sales tax is 6%, what is the fin

svet-max [94.6K]

The final cost of skateboard will be $83.10

Step-by-step explanation:

Given,

Cost of skateboard = $98

Coupon = 20% off

Amount of discount = 20% of cost of skateboard

$Amount\ of\ discount=\frac{20}{100}*98\\\\Amount\ of\ discount=\frac{1960}{100}\\\\Amount\ of\ discount=\$19.6$

Cost of skateboard after discount = Cost of skateboard - Amount of discount

Cost of skateboard after discount = 98 - 19.6 = $78.4

Sales tax = 6%

Sales tax amount = 6% of discounted price

$Sales\ tax\ amount=\frac{6}{100}*78.4\\\\Sales\ tax\ amount=\frac{470.4}{100}\\\\Sales\ tax\ amount=\$4.70$

Final cost of skateboard = Discounted price + Sales tax

Final cost of skateboard = 78.40+4.70 = $83.10

The final cost of skateboard will be $83.10

Keywords: sales tax, addition

Learn more about addition at:

#LearnwithBrainly

7 0

2 years ago