Answer:
3(1−3x)+2x
1 Expand by distributing terms.
-(3-9x)+2x
2 Remove parentheses.
-3+9x+2x
3 Collect like terms.
-3+(9x+2x)
4 Simplify.
-3+11x
5 Regroup terms.
11x-3
Done
Step-by-step explanation:
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Answer:
Six
Step-by-step explanation:
Six is thirty percent of twenty.
<em>distributed =2/3 on left side</em>
-20x + 5 ≤ 3x - 15
<u> -3x </u> <u>-3x </u>
-23x + 5 ≤ -15
<u> -5</u> <u> -5 </u>
-23x ≤ -20
x ≥ 
<em>divided by a negative so the symbol reversed </em>
******************************************************
2x² + 2 = 3x
2x² - 3x + 2 = 0
2x² - 3x = -2
2(x² - 
+ __) = -2 + (2)(___)
2(x² - 
) = -2 + 
2(x - 
)² = -2 + 
2(x - )² = -2 + 
2(x - )² = -2 +
2(x - )² = 
+
2(x - )² = 
(x - )² = 
x - = +/- 
x - = +/- 
x = + , x = -
x = 
, x = 
The number of kids in your group is 12.
<u>Step-by-step explanation:</u>
Let the number of kids=x
number of adults=y
total number of people=20
x+y=20(1)
cost of kids ticket=$4
cost of adults' ticket=$6
total cost=$96
4x+6y=96(2)
solving (1) and (2)
we get x=12
y=8
number of adults in the group y=8
number of kids in the group=12
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