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Stels [109]
3 years ago
12

How can I solve 30x-18-5-4x=55

Mathematics
1 answer:
Elden [556K]3 years ago
3 0

\text{Solver for x:}\\\\30x-18-5-4x=55\\\\\text{Combine like terms}\\\\26x-18-5=55\\\\26x-23=55\\\\\text{Add 23 to both sides}\\\\26x=78\\\\\text{Divide both sides by 26}\\\\\boxed{\text{x = 3}}

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For f(x) = 3x + 1 and g(x) = x2 – 6, find (f + g)(x)
serg [7]
(f+g)(x)=f(x)+g(x)=3x+1+x²-6=x²+3x-5

answer is D
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What is 1+2= because I don't really know
sweet-ann [11.9K]
The answer is 3, and now you know
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3 years ago
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suppose you invest 400 at an annual interest rate of 7.6% compounded continuously. How much will you have in the account after 1
dlinn [17]
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A=400×e^(0.076×1.5)
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Convert: 4 quarts (dry) to liters.<br> a. 0.4406<br> b. 4.406<br> c. 44.06<br> d. 440.6
kipiarov [429]
1 dry quart=1.10 

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4 0
2 years ago
4x-y=20 and -2x-2y=10
lara31 [8.8K]

You can use Substitution to solve this problem:


4x-y=20

-y=-4x+20

y=4x-20


Now you have two equations, and you use the first one to substitute into the second one.


y=4x-20     and     -2x-2y=10


-2x-2(4x-20)=10

-2x-8x+40=10

-10x+40=10

-10x=-30

-x=-3

x=3


Now that we have figured out what x is, we can substitute x in to one of the equations to figure out y.


4x-y=20       x=3

4(3)-y=20

12-y=20

-y=8

y=-8



<em><u>So your answer would be x=3 and y=-8</u></em>

6 0
3 years ago
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