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Sophie [7]
3 years ago
13

Solve: -2+5x-7=3x-9+2x

Mathematics
2 answers:
Alexandra [31]3 years ago
6 0
Bring the equation on the left to the right side. So 3x -9+2x+2x-5x+7= 2x-2
damaskus [11]3 years ago
4 0
Let's solve your equation step-by-step.<span><span><span><span>−2</span>+<span>5x</span></span>−7</span>=<span><span><span>3x</span>−9</span>+<span>2x</span></span></span>
Step 1: Simplify both sides of the equation.<span><span><span><span>−2</span>+<span>5x</span></span>−7</span>=<span><span><span>3x</span>−9</span>+<span>2x</span></span></span><span>
Simplify: </span><span><span><span>5x</span>−9</span>=<span><span>5x</span>−9</span></span>
Step 2: Subtract 5x from both sides.<span><span><span><span>5x</span>−9</span>−<span>5x</span></span>=<span><span><span>5x</span>−9</span>−<span>5x</span></span></span><span><span>−9</span>=<span>−9</span></span>
Step 3: Add 9 to both sides.<span><span><span>−9</span>+9</span>=<span><span>−9</span>+9</span></span><span>0=0</span>Answer:<span>All real numbers are solutions.</span>
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Dvinal [7]

You could do this with two weighings assuming its a two pan balance - (1) place three balls on each side - if they balance out then its the remaining three that has abnormal ball (2) out of that group, place one ball on each side - if balances it out, the abnormal ball is the remaining one.

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7 0
3 years ago
What is the range of possible
olya-2409 [2.1K]

Answer:

4<C <10

Step-by-step explanation:

Theorem: Given a triangle with sides A, B and C the sum of the lengths of any two sides of a triangle must be greater than the third side:

1.  A+B>C

2.  B +C >A

3.  A+C>B

Thus given two sides of A=3 and B=7 C can be:

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8 0
3 years ago
36 ounces of beer has the same amount of alcohol as:
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Step-by-step explanation:

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= 36 × 5/12 ounces of wine

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39 is 48.75 percent of 80.
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How do you solve this
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