How do you solve $\frac { 3a } { 30} - \frac { 5} { 2} = \frac { 2a } { 6} - \frac { 6} { 15}$ ?

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Answer 1 · 2017-07-16T13:58:09

$a=-9$

$(3a)/30 - 5/2 = (2a)/6 -6/15$

$a/10 - 5/2 = a/3 - 2/5$

$(2a - 50)/20 = (5a - 6)/15$

$3(2a - 50) = 4(5a - 6)$

$6a - 150 = 20a - 24$

$20a - 6a = -150 + 24$

$14a = -126$

$a = -9$

How do you solve \frac { 3a } { 30} - \frac { 5} { 2} = \frac { 2a } { 6} - \frac { 6} { 15}\frac { 3a } { 30} - \frac { 5} { 2} = \frac { 2a } { 6} - \frac { 6} { 15}?