What value of x makes the equation true?
2 answers:
Answer:
X is 3
Step-by-step explanation:
You can make your equation simpler by solving the one on the right:
( -11 )^x times ( -11)^4 = ( -11 )^7
Then 7 - 4 is 3 so the exponent must be 3.
Answer:
x=3
Step-by-step explanation:
(-11)^x * (-11) ^4 = (-11)^10/ (-11)^3
We know a^b * a^c = a^(b+c)
(-11)^(x +4) = (-11)^10/ (-11)^3
We know a^b / a^c = a^(b-c)
(-11)^(x +4) = (-11)^(10 -3)
(-11)^(x +4) = (-11)^(7)
The bases are the same so the exponents are the same
x+4 = 7
Subtract 4 from each side
x+4-4 = 7-4
x =3
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Step-by-step explanation:
Answer:
1) 2(2x+3)
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4) 9x - 2
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6) - 12x - 17
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8) 3x/4
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Answer: 110 -10x
Step-by-step explanation:
You do pemdas
So 11•10 = 110
Then -10•x = -10x
And then you get
110-10x
U would equal 206/86 or 2.39585