If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-4+a=-7
We move all terms to the left:
-4+a-(-7)=0
We add all the numbers together, and all the variables
a+3=0
We move all terms containing a to the left, all other terms to the right
a=-3
| 5j-3j+4j-5j=7 | | n(2)+6=127 | | 10h-3=87 | | 10(12)+25=5x+3(12) | | 3f+0.5-1=-7 | | 120+25=5x+36 | | -2(4y+2)=-7y-2 | | 10y+25=13y-11 | | 10h-3=145 | | –5x+18=3x–32 | | -7x+6=2-8x | | 7x+5+x=5x+4x | | 5(x+4)-4(x+2)=4 | | 15t-14t-1=14 | | (x+1)(3x−2)=0 | | 4+4x/5+5-x/2=21/10 | | 1092=21(p+10) | | -14t+13t=10 | | 12y+15=165 | | 14=2+4g | | 1092=21p+210 | | 3t-14t+t+12t-3t=-18 | | r/2-4=-2 | | 6-2d=-42 | | 10x=347.5+x | | 4n+2n-4n=16 | | 25^x+5^1+2x=50 | | 0.5(h+1+6)=18 | | 7x-14=22=9x | | 4z+3=2z+11 | | m+8m+1=19 | | 5t−4t=9 |