how do you do 1/4 (16x+20)-7x

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01-12-2016
Mathematics

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how do you do 1/4 (16x+20)-7x

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KeaneNR KeaneNR · Answer 1 · 2016-12-01T03:54:20+01:00

KeaneNR KeaneNR

01-12-2016

Distribute the 1/4:
1/4(16x) + 1/4(20) - 7x

Do the multiplication:
1/4(16x) = 16x/4 = 4x
1/4 (20) = 20/4 = 5

Now you have:
4x + 5 - 7x = 0

Combine like terms (4x and -7x):
-3x + 5 = 0

Subtract 5 from both sides:
-3x = -5

Divide by -3:
x = -5/-3 = 5/3

Answer:
x= 5/3

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