Answer:
question 1: 25
question 2: 28
question 3: 21
Step-by-step explanation:
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3x + 6 = 2x + 4
bring the 2x over the " equals" sign anything you do this to always changes "signs"
-2x ( negative because it was positive before ) so now it's
-2x +3x +6 = 4
bring the 6 over
-2x + 3x = -6 + 4
then just work it out from here
answer would be
x (or 1x) = -2
14.3%
difference/actual = (3.2 - 2.8)/2.8 x 100% = 14.3% (3sf)
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