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monster · 11-06-2009, 05:11 PM

(14x+7) + (20x+15) = 90

first of all put like terms together i.e. Xs together and numbers together:

14x + 20x + 7 + 15 = 90
>> 34x + 22 = 90

then get the Xs on one side and the numbers on the other. So this by subtracting 22 from each side

34x = 90= 22
>> 34x = 68

then divide both sides by 34 to get the value for 1x

x = 2

11-06-2009, 05:11 PM	#4799
monster I hear them call the tide Join Date: Dec 2005 Location: Perpetual Chaos Posts: 30,852	(14x+7) + (20x+15) = 90 first of all put like terms together i.e. Xs together and numbers together: 14x + 20x + 7 + 15 = 90 >> 34x + 22 = 90 then get the Xs on one side and the numbers on the other. So this by subtracting 22 from each side 34x = 90= 22 >> 34x = 68 then divide both sides by 34 to get the value for 1x x = 2 __________________ The most difficult thing is the decision to act, the rest is merely tenacity Amelia Earhart