# Help with Pre-Calculus

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## Here are the step by step explanations for you (A+ work)

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xxxx xxx the step xx step explanations xxx xxx (A+ xxxxx

just xxxxx in Q-7 so x am xxx charging xxx xxx

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Do xxx steps with **xxxxx explanations** xxxxxxx xx xxxx was xxxx xx the examples in xxx xxxxxx

**xxxxxx xxx xx xx xxxx the xxxx at the end xx xxx xxxxx**

xxxx the xxxx xxxxxxx by the xxxxxxxxxxx

y x xxx xxx x x 4

xx xxx xxxx the xxxxx xx xxxxxxxx points

x x xxx

The figure xxxxxx will xx x xxxxxxxx xx shown in xxxxxxx

xxx y = 4 we xxx points (0, xx (5, 4) joining xx get the graph.

xxx x xxxx we xxx the xxxxx xx shown xx xxxx

Point xx xxxxxxxxxxxx xxx xxx 4) and xxxx 4)

So we get xxxx of xxxxxxxx xx 8 xxxxxx

xxx height xx xxxxxxxx as x xxxxxx

Area x ½ x x * 4 x 16 sq units

xxx

**Solve each xxxxxx using either xxx xxxxxxxxxxx method xx the substitution method. Verify xxxx result xx xxxxxxxx xxxx system. Indicate xxx point xx intersection on your xxxxxx**

**xx + y = xxxx**

**xxx x xx = 5
**

**xxxxx verify your result by graphing the system xx equations given.
**

2x + y = xx

-2x x xx x xx

Adding xxx xxx xxxxxxxxx we can eliminate x

We xxxx

4y x

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