Answer:
C
Step-by-step explanation:
84 - (15+13)/4
84 - 28/4
56/4
14
3(2x+1)=15
6x+3=15
-3 -3
6x=12
divide each side by 6
x=2
Answer:
n = -3 or 8
Step-by-step explanation:
2n² = 10n +48 (rearrange)
2n²- 10n - 48 = 0 (divide all terms by 2)
n²- 5n - 24 = 0
by factorization,
(n+3)(n-8) = 0
hence,
n+3 = 0 ----> n = -3
or
n-8 = 0 ----> n = 8
Answer:
62500
Step-by-step explanation:
Answer: x=-5
Step-by-step explanation: In order to get rid of the parentheses we must multiply or distribute the outside number times anything inside the parentheses.
–5(1 – 5x) + 5(–8x – 2) = –4x – 8x
-5-25x+-40x-10=-4x-8x
Next we combine like terms.
-5-25x+-40x-10=-4x-8x
-15-15x=-12x
Then we add 15x to both sides
-15-15x=-12x
-15=3x
Finally we divide both sides by 3 which will give us our answer.
-15=3x
-15/3=3x/3
x=-5
<u><em>x=-5 Hope this helps!</em></u>
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