# Algebra help: 3-2(x+3)+2=1,1/3(t-5)-6,if a blue heron that m

#### lalcasio

##### New member
1) 3 - 2(x + 3) + 2 = 1

2) 1/3(t - 5) - 6

3) If a blue heroin that measures 3.5 inches in the photo is actually 3.75 feet tall, then approximately how long is its beak if it measures 0.4 inches in the photo?

#### Denis

##### Senior Member
Re: Algebra help

Looks suspiciously like you skipped classes, now want us to do your homework...
Let's see:
2(x-5) = 4 : solve for x
If you can't do that, then you need to be in class, not here.

#### jonboy

##### Full Member
Re: Algebra help

lalcasio said:
Solve (1)$$\displaystyle \L \;3-2(x+3)+2=1\;$$ and (2)$$\displaystyle \L \;1/3(t-5)\,=\,6\;$$

(3)If a blue heroin that measures 3.5 incehes in the photo is actually 3.75 feet tall approximately how long is its beak of it measures 0.4 inchesin the photo.
1) $$\displaystyle \L 3\,-\,2\,(x\,+\,3)\,+\,2\,=\,1\;$$

$$\displaystyle \L 3\,-\,2x\,-\,6\,+\,2\,=\,1$$

$$\displaystyle \L -\,2x\,-\,1\,=\,1$$

$$\displaystyle \L -\,2x\,=\,2$$

$$\displaystyle \L x\,=\,-\,1$$

So:$$\displaystyle \L \;3\,-\,2\,(\,-\,1\,+\,3)\,+\,2\,=\,1\;$$

On the second I'm gonna go out on my and say you mean: $$\displaystyle \L \;\frac{1}{3(t\,-\,5)}\,=\,6$$

2) $$\displaystyle \L \;\frac{1}{3t\,-\,15}\,=\,\frac{6}{1}$$

Criss - Cross Multiplication:$$\displaystyle \L \;1\,=\,18t\,-\,90$$

$$\displaystyle \L \;90\,=\,18t$$

$$\displaystyle \L \;t\,=\,5$$

3) Ok lets make a proportional proportion!

$$\displaystyle \L \frac{3.5}{3.75}\,=\,\frac{.4}{x}$$

$$\displaystyle \L 1.5\,=\,3.5x$$

$$\displaystyle \L x\,=\,.428571429\,\to\,\approx.43\,in.$$