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abruzzese [7]
3 years ago
12

Find the property of this : 5x*(4y+3x)=5x*(3+4y)

Mathematics
2 answers:
7nadin3 [17]3 years ago
4 0
Simplifying
5x(4y + 3x) = 5x(3x + 4y)

Reorder the terms:
5x(3x + 4y) = 5x(3x + 4y)
(3x * 5x + 4y * 5x) = 5x(3x + 4y)

Reorder the terms:
(20xy + 15x2) = 5x(3x + 4y)
(20xy + 15x2) = 5x(3x + 4y)
20xy + 15x2 = (3x * 5x + 4y * 5x)

Reorder the terms:
20xy + 15x2 = (20xy + 15x2)
20xy + 15x2 = (20xy + 15x2)

Add '-20xy' to each side of the equation.
20xy + -20xy + 15x2 = 20xy + -20xy + 15x2

Combine like terms: 20xy + -20xy = 0
0 + 15x2 = 20xy + -20xy + 15x2
15x2 = 20xy + -20xy + 15x2

Combine like terms: 20xy + -20xy = 0
15x2 = 0 + 15x2
15x2 = 15x2

Add '-15x2' to each side of the equation.
15x2 + -15x2 = 15x2 + -15x2

Combine like terms: 15x2 + -15x2 = 0
0 = 15x2 + -15x2

Combine like terms: 15x2 + -15x2 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.
kirill [66]3 years ago
4 0

Answer:

0

Step-by-step explanation:

5x • (3x + 4y) - 5x • (4y + 3) =

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8 0
3 years ago
the sum of two numbers is 9. if one number is subtracted from the other, the result is 3. find the numbers
irakobra [83]
X, y - the numbers

The sum of the two numbers is 9.
x+y=9

If one number is subtracted from the other, the result is 3.
x-y=3

Solve the system of equations:
x+y=9 \\
\underline{x-y=3} \\
x+x=9+3 \\
2x=12 \ \ \ |\div 2 \\
x=6 \\ \\
x+y=9 \\
6+y=9 \ \ \ |-6 \\
y=3

The numbers are 6 and 3.
6 0
3 years ago
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Find the value of 5x - 2y+ 3z when x = 7 , y = 11 and z = -1
Oksanka [162]
By replacing you get:

5*7-2*11+3*(-1) = 35-22-3= 10

so the answer is 10.

If you like my answers, feel free to follow me and ask me more maths problems. :)
7 0
3 years ago
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Find the volume of the cylinder.<br> Either enter an exact answer in terms of it or use 3.14 for T.
kaheart [24]

Answer:

188 units cubed

Step-by-step explanation:

6 0
2 years ago
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100 Points
UNO [17]
<span>1) Write the equation in slope intercept form if 

Slope=3/5 and intercept is 2
y = mx + b
m = 3/5 and b = 2
so

</span><span>equation in slope intercept 
</span><span>y = 3/5(x) + 2

</span><span>2. Find the x intercept of the line 5x-2y=10

x intercept when y = 0
so
</span>5x-2y=10
5x-2(0)=10
5x = 10
  x = 2

answer
x intercept (2 , 0)

hope it helps
6 0
3 years ago
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