First you collect like terms on each side.
X+(-8)=4x+1
Then you move the variable (x) to one side, and the constants to the other. (-x to both sides, and -1 to both sides)
-9 = 3X
Then you get the variable alone. (Divide by 3)
-3 = X
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16x2 + 32x - 65 = 0 factorises (4x + 13)(4x - 5) This makes x either -13/4 or 5/4.
False. 65 equals 10 plus 65 65 = 10 + 65 65 = 75 You know that this is false because 65 doesn't equal 75.
65+35 = 100
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