Question

For u math people out there- 7+3d-5=-1+2d-12+d and I would very much like it if u would show how to do it

Answer 1

7+3d-5=-1+2d-12+1d
Collect like terms on the right side of the equation:
-1 and -12 make -13
2d and 1d make 3d
Do the same on the left side:
7 and -5 make 2
So now the equation looks like this:
3d+2=3d-13
Bring 3d to the other side by subtracting it from both sides (doing the opposite)
(3d+2)-3d=-13 (3d cancels itself out)
3d+2-3d=-13
Collect like terms:
3d and -3d make a 0 pair
Equation now looks like this:
2=-13
Finish by subtracting 2 from both sides:
2-2=-13-2
0=-15

Answer 2

so do the like terms first
lets start with the left side
7-5 =2
so itd turn into 2+3d = 1+2d-12+d
now combine like terms on the right side
2+3d= -11 +d
now subtract d from both sides
2+2d=11
now subtract 2 from both sides
2d=9
now divide 2 by 9
d= 4.5