How do you solve # \frac { x + 3} { 2} + \frac { 2x } { 7} = 7#?

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Answer 1 · 2017-07-22T05:42:20

A good way to solve this problem is by multiplying the terms with the LCD; or the Least Common Denominator.

#(x+3)/2+(2x)/7=7#

Multiply the terms with 14; the Least Common Denominator of the three terms within the equation.

#7(x+3) +2(2x)=98#

Now, just solve for x.

#7x+21+4x=98#

#11x=77#

#x=7#