Answer:
x=−1
Step-by-step explanation:
Let's solve your equation step-by-step.
−5x−16+3x=−23−9x
Step 1: Simplify both sides of the equation.
−5x−16+3x=−23−9x
−5x+−16+3x=−23+−9x
(−5x+3x)+(−16)=−9x−23(Combine Like Terms)
−2x+−16=−9x−23
−2x−16=−9x−23
Step 2: Add 9x to both sides.
−2x−16+9x=−9x−23+9x
7x−16=−23
Step 3: Add 16 to both sides.
7x−16+16=−23+16
7x=−7
Step 4: Divide both sides by 7.
7x
7
=
−7
7
x=−1
Answer:
x=−1
48.9 - 29.7 = 19.2...so there was an increase of 19.2 lbs in an 8 month period.
19.2 / 8 = 2.4....thats an increase of 2.4 lbs per month
Solutions
Gather like terms
<span /><span><span><span><span><span><span>5</span><span>+</span><span>(</span><span>−</span><span>9</span><span>k</span><span>+</span><span>8</span><span>k</span><span>)</span><span>−</span><span>8</span></span><span /></span></span><span /></span></span>2<span>
</span>
Simplify
<span /><span><span><span><span><span><span>5</span><span>−</span><span>k</span><span>−</span><span>8
</span></span><span /></span></span><span /></span></span>
<span> </span>Simplify
<span /><span><span><span><span><span><span>−</span><span>k</span><span>−</span><span>3</span></span><span /></span></span><span /></span><span>
</span></span>
Arrange the numbers from least to greatest
2,3,5,5,6,9
the median is 5
5 years ago, Karl was 20 and James was 5. 20-5=15 and 4*5=20. Now, Karl is 25 and James is 10. In 4 years, Karl will be 29 and James will be 14.