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Kryger [21]
4 years ago
8

I need help solving.... 9x-2x+3=3x+4x+3

Mathematics
1 answer:
Anarel [89]4 years ago
4 0
9x - 2x + 3 = 3x + 4x + 3
Subtract 3 from both sides:
9x - 2x + 3 - 3 = 3x + 4x + 3 - 3 
Which then:
= 9x - 2x = 3x + 4x
Add similar elements: 9x - 2x = 7x
7x = 3x + 4x
Add similar elements: 3x + 4x = 7x
7x = 7x
The, subtract 7x from both sides
7x - 7x = 7x - 7x 
Simplify,
0 = 0
So, both sides are equal.
You might be interested in
how many 4 digit numbers n have the property that the 3 digit number obtained by removing the leftmost digit is one ninth of n
Tom [10]

Answer:

  7

Step-by-step explanation:

We want to find the number 4-digit of positive integers n such that removing the thousands digit divides the number by 9.

__

Let the thousands digit be 'd'. Then we want to find the integer solutions to ...

  n -1000d = n/9

  n -n/9 = 1000d . . . . . . add 1000d -n/9

  8n = 9000d . . . . . . . . multiply by 9

  n = 1125d . . . . . . . . . divide by 8

The values of d that will give a suitable 4-digit value of n are 1 through 7.

When d=8, n is 9000. Removing the 9 gives 0, not 1000.

When d=9, n is 10125, not a 4-digit number.

There are 7 4-digit numbers such that removing the thousands digit gives 1/9 of the number.

8 0
2 years ago
Given the functions f(x)=2x^2-3x-8 and g(x)=3x2+5x+1
fiasKO [112]

Answer:

D 5x^2+2x-7

Step-by-step explanation:


6 0
4 years ago
Plot the line for the equation on the graph. y−5=32(x−2)
Tom [10]
Y-5=32(x-2)
Y-5=32x-64
Y=32x-59
Y=-59
X=32
So that would give you
Y intercept: -59
And slope: 32
I hope that helped! Lemme know
6 0
3 years ago
Choose the correct simplification of (7x3 − 8x − 5) + (3x3 + 7x + 1).
Ganezh [65]
<span>10x3 − x − 4 is the correct answer to your question</span>
4 0
4 years ago
Read 2 more answers
Solve for x: 4(x+5(x-7)+7x)=3(x+2(x+5(x-3)+7)-2x
qaws [65]

Answer:

x = 158/15

Step-by-step explanation:

It took me awhile to solve it, but I hope I got the correct answer and managed to help you ÷)

8 0
3 years ago
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