5[3(x+4)-2(1-x)]-x-15=14x+55 what is x
1 answer:
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Answer:
7.) write 0 in one of the dashes and then you can count with fractions or decimals.
Draw an open circle (not filled in) on the 17/3 dash. Then draw the arrow going the same direction as #8.
9.)
He still needs 40 oz to drink.
40 (<em>less</em><em> </em><em>than</em><em> </em>or equal to sign) x
Step-by-step explanation:
*Find how many ounces in 8 cups
8 cups × 8 ounces = 64 ounces
**Figure out the sign
- it has to be equal to because his goal is to drink <em>at</em><em> </em><em>least</em><em> </em>64 oz.
- the sign has to also be greater than because he want to drink more than 64 if possible for him
***What goes on the other side of the sign?
- the 24 oz that he already drank plus the needed amount, let it be <em>x</em><em> </em>for unknown
<em>-</em><em> </em>the equation is 24 + unknown, or 24 + <em>x</em>
****Join all parts to get equation:
*****isolate <em>x</em>
<em>-</em><em> </em>subtract 24 to both sides to cancel out the 24 on the side with <em>x</em>
******Answer to how many oz he still needs:
40 (less than or equal to sign) <em>x</em>
<em>Oops</em><em> </em><em>I</em><em> </em><em>had</em><em> </em><em>said</em><em> </em><em>it</em><em> </em><em>was</em><em> </em><em>greater</em><em> </em><em>than</em><em> </em><em>but</em><em> </em><em>it's less</em><em> </em><em>than</em><em> </em><em>because</em><em> </em><em>the</em><em> </em><em>x</em><em> </em><em>is</em><em> </em><em>supposed</em><em> </em><em>to</em><em> </em><em>be</em><em> </em><em>equal</em><em> </em><em>to</em><em> </em><em>or</em><em> </em><em>greater</em><em> </em><em>than</em><em> </em><em>4</em><em>0</em><em> </em><em>oz</em><em>.</em>