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inn [45]
3 years ago
15

Solve for x: 4(x + 2) = 3(x − 2) 1. −2 2. −4 3. −10 4. −14

Mathematics
2 answers:
miskamm [114]3 years ago
8 0

Your answer would be -14

Troyanec [42]3 years ago
8 0

4(x + 2) = 3(x − 2)

Mutiply the first bracket by 4

(4)(x)(4)(2)= 4x+8

Mutiply the second bracket by 3

(3)(x)(3)(-2)= 3x-6

4x+8= 3x-6

Move 3x to the other side

Sign changes from +3x to -3x

4x-3x+8= 3x-3x-6

4x-3x+8= -6

x+8= -6

Move +8 to the other side

Sign changes from +8 to -8

x+8-8= -6-8

x= -14

Answer: x= -14

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What is the measure of angle 4?
Ymorist [56]
Answer: C) 108 degrees

------------------------------------------------------

Explanation:

Angle 4 is an exterior angle which corresponds to the remote interior angles of 33 degrees and 75 degrees. Through the remote interior angle theorem, we can add the remote interior angles to get the exterior angle

So we simply add 33 and 75 to get 33+75 = 108

If you chose not to use this theorem, then you can find angle three by using the fact that all three angles of the triangle must add to 180 degrees. So,

33+75+(angle 3) = 180
108+(angle 3) = 180
108+(angle 3) - 108 = 180 - 108
angle 3 = 72 degrees

Then use the fact that angle 3 and angle 4 are supplementary

(angle 3) + (angle 4) = 180
72 + (angle 4) = 180
72 + (angle 4) - 72 = 180 - 72
angle 4 = 108 degrees

either way, we get the same answer
7 0
4 years ago
Read 2 more answers
How do i solve x=y+1 and 3x+2y=8 by substitution
Alchen [17]
3(y+1)+2y=8  

3y + 3 +2y = 8

5y +3 = 8
     -3    -3

5y = 5
---    ---
 5      5

y=1
5 0
3 years ago
PLEASE HELP, DUE IN 5 MIN I NEED HELP PLS PLS PLS!!!!!!!!!
BlackZzzverrR [31]

Answer:

it would be: A.

Step-by-step explanation:

6 0
3 years ago
How do you substitute 5x+4y=0 , x-y=9
-BARSIC- [3]
Steps:
1.Change x-y=9 into slope-intercept form.
Subtract x on both sides
-y=-x + 9
Divide everything by -1
Y= x-9
2. Now substitute the y in 5x + 4y=0 for x-9
5x + 4(x-9)= 0
5x + 4x-36=0
3. Now combine like terms
9x-36=0
4. Add 36 on both sides
9x= 36
5. Divide each side by 9
6. X= 4
7. Now substitute the x in x-y=9 for 4
4-y=9
8. Subtract 4 on both sides
-y= 5
9. Divide everything by -1
10. Y= -5
11. Your answer is x= 4 and Y= -5 or (4,-5)
5 0
4 years ago
Rewrite 163/4 in as many different ways as you can
VladimirAG [237]
There's an infinite number of ways we can rewrite 16 3/4, some of them being:

16 3/4
16 6/8
16 12/16
16 24/32
16.75
67/4
335/20
670/40
etc.

I hope it will help you ;)

4 0
4 years ago
Read 2 more answers
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