Answer:
Step-by-step explanation:
We want to find a common factor for
and
We factor each of them to get;
and
We can observe now that;
The factor common to both expression is
Problem 1
<h3>Answer: Choice B) x = -2</h3>
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Explanation:
Add the equations straight down.
The x terms add to 5x+(-3x) = 2x
The y terms cancel out since 3y+(-3y) = 0y = 0
The right hand sides add to -7+3 = -3
After adding the equations you should get 2x = -4 which solves to x = -2
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Problem 2
<h3>Answer: y = 4</h3>
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Explanation:
Since 5x = 0, this means x = 0 after dividing both sides by 5.
Use this to find y
y = -4x+4
y = -4(0)+4
y = 4
If you want the value of z, then
x = -3y+z+6
0 = -3(4)+z+6
0 = z-6
6 = z
z = 6
For this case we have the following equation:
We want to solve the equation for the letter c.
To do this, we apply the distributive property:
Then, applying addition property of equality we have:
Then applying division property of equality we have:
Answer:
The value of c is:
Answer: 1,6 2,2 5,0 These are the correct answers.
Step-by-step explanation:
There’s 9 girls in the math club, and 10 in the science club
