How do you solve #0.3x + 0.4( 10) = 0.1( x + 20)#?

Question

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Answer 1 · 2017-06-28T14:39:12

#x = - 10#

#0.3x + 0.4( 10) = 0.1( x + 20)#

Solution

Remove the brackets we have...

#0.3x + 4 = 0.1x + 2#

Collection of like terms...

#0.3x - 0.1x = 2 - 4#

#0.2x = -2#

Divide both sides by #color(red)0.2#

#cancel(0.2x)/cancel0.2 = -2/0.2#

#:. x = -2/0.2#

#x = - 10# #-># #Answer#