How do you solve for J in $M + D J = T$ $M+DJ=T$ ?

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Answer 1 · 2018-03-25T12:32:19

$J = \frac{T - M}{D}$ $J=(T-M)/D$

$M + D J = T$ $M+DJ=T$

The idea is to get $J$ $J$ on the left and all the other stuff to the right

Let's move $M$ $M$ to the right. To do that let's subtract $M$ $M$ from both sides
$\cancelM+DJ\cancelcolor(blue)(-M)=T\color(blue)(-M)$

And we get
$DJ=T-M$

To reach our objective we can divide both sides by $D$
$(\cancel(D)J)/color(red)cancel(D)=(T-M)/\color(red)D$

And the solution is:
$J=(T-M)/D$

How do you solve for J in M+DJ=TM+DJ=TM+DJ=T?