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ivann1987 [24]
4 years ago
12

Can someone help me with this? And show me the work ASAP

Mathematics
1 answer:
Alex73 [517]4 years ago
8 0
1. 5x+1=4x-1
5x-4x=-1-1
x=-2

2. -10b+5=7b+5
7b+10b=5-5
17b=0
b=0

3. r+15=4r-6
4r-r=15+6
3r=21
r=21/3
r=7

4. 10-2v=-5v-50
-2v+5v=-50-10
3v=-60
v=-60/3
v=-20

5. 15y+3=18y
18y-15y=3
3y=3
y=3/3
y=1

6. -2x+6=4x+9
4x+2x=6-9
6x=-3
x=-3/6
x=-1/2
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Could somebody please help me find the answers for 'x' for these pictures?
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Answer:

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Pic 2: x=20

Step-by-step explanation:

<u>Picture 1:</u>

<u />2x+x-3=90\\3x-3=90\\3x=93\\x=31

First, add the 2x and x together for 3x

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<u>Picture 2:</u>

<u />7x+x+20=180\\8x+20=180\\8x=160\\x=20<u />

First, add 7x and x together for 8x

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3 years ago
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Step-by-step explanation:

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3 years ago
A triangular prism has a base that is 15 cm2. Its height is 6 cm. What is its
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2 years ago
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4 0
3 years ago
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Anyone know?<br> get points
Evgen [1.6K]
Let's simplify step by step
2/9x+2/7+1/3x1/7

Combine Like Terms:
=2/9x+2/7+1/3x+1/7
=(2/9x+1/3x)+(2/7+1/7)
=5/9x+3/7

Answer
=5/9x+3/7

Hope this helps :)


8 0
3 years ago
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