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murzikaleks [220]
4 years ago
8

Simplify 18 - 2[x + (x - 5)]. please i keep getting it wrong

Mathematics
1 answer:
Juli2301 [7.4K]4 years ago
8 0
18-2[x+(x-5)]
18-2[2x-5]
18-4x+10
28-4x
-7+x  or x-7  <-- Simplified version.
x=7      <-- What x equals.

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Which ordered pair is a solution of the equation? − 7 x + 3 y = 2 −7x+3y=2
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Hello There. ☆~\---___`:•€`___---/~☆ The correct answer is C. Both (1,3) and (-2,-4).

To check whether (-2,-4) is a solution of the equation let's substitute x= -2 and y= -4 into the equation:

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Do the same thing with (1,3)

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