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baherus [9]
4 years ago
6

Solve for x: -3 ( 4x + 3 ) + 4 ( 6x + 1 ) = 43

Mathematics
1 answer:
Vlad [161]4 years ago
8 0

Answer:

X=73 that’s just simple.

Step-by-step explanation:

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3x+4y=29<br> 6x+5y=43<br> Solve through elimination
vagabundo [1.1K]

Answer:

Let's solve your system by elimination.

3x+4y=29;6x+5y=43

Multiply the first equation by -2,and multiply the second equation by 1.

−2(3x+4y=29)

1(6x+5y=43)

Becomes:

−6x−8y=−58

6x+5y=43

Add these equations to eliminate x:

−3y=−15

Then solve−3y=−15for y:

−3y=−15

−3y −3 = −15

−3

(Divide both sides by -3)

y=5

Now that we've found y let's plug it back in to solve for x.

Write down an original equation:

3x+4y=29

Substitute5foryin3x+4y=29:

3x+(4)(5)=29

3x+20=29(Simplify both sides of the equation)

3x+20+−20=29+−20(Add -20 to both sides)

3x=9

3x 3 = 9

3

(Divide both sides by 3)

x=3

Answer:

x=3 and y=5

Step-by-step explanation:

I love this stuff 229 999 0523

6 0
3 years ago
Use Pascal’s triangle and binomial expansion strategies (x+y)^3
mariarad [96]
<h2>1. Pascal’s triangle</h2>

Pascal's triangle is an strategy in math that stands for a triangular array we use to solve problems of binomial coefficients. This strategy is called after the mathematician Blase Pascal. It consists in number patters. So in this problem we need to solve this following Pascal’s triangle strategy:

(x+y)^3

The strategy consists in building a triangle. So 1 is the first and last numbers in each row of Pascal’s Triangle. Next, every other  number in each row is formed when you add the two numbers directly above the  number, as shown in Figure below. So:

(x+y)^3=x^3+3x^2y+3xy^2+y^3

<h2>1. Binomial Expansion</h2>

A binomial is a polynomial having two terms. So binomial expansion is a method that stands for a formula that gives us a quick method of raising a binomial to a power. So, for n=3, the binomial expansion can be written as:

(x+y)^3=x^3+3x^2y+3xy^2+y^3

3 0
3 years ago
I need help with this question. Thank you!
sdas [7]

Answer:

gradient is the same as slope The gradient or slope of line A = 3/1 or 3

The gradient of line B is -4/1 or -4

gradient or slope = rise over run = y/x.

if the line goes up from the left to the right, The slope is positive.

if the line goes down from the left to the right, The slope is negative

6 0
3 years ago
Ravi is planning to buy concert tickets for himself and a small group of friends. The tickets cost $21 each plus a $5 transactio
frutty [35]
How many friends dose he have in all
7 0
3 years ago
Match each description when z = 9 + 3i.
VladimirAG [237]
Real part of z = 9
Imaginary Part = 3i
Conjugate of z is 9 - 3i

7 0
3 years ago
Read 2 more answers
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