Question

express y in terms of x if x/4-3y=7

Answer 1

x/4=7+3y
x/4-7=3y
x/12-7/3=y

Answer 2

set y by itself by first adding over 3y to the other side
once done subtract the seven over
and then divide by 3 so it should look like\[(\frac{ x }{ 4 }-7)\ (\frac{ 1 }{ 3 })\]

Answer 3

multiply that through and you get\[\frac{ x }{ 12 }-\frac{ 7 }{ 3 }\]

Answer 4

x4−3y = 7
⇒−3y = 7−x4
⇒−3y = 28−x4
⇒(−3y)×4 = 28−x
⇒−12y = 28−x
⇒−y = 28−x12
⇒y = −(28−x12)
⇒y = x−2812
Therefore the required expression on terms of x is y = x−2812.