If it's not what You are looking for type in the equation solver your own equation and let us solve it.
z-z+4z=12
We move all terms to the left:
z-z+4z-(12)=0
We add all the numbers together, and all the variables
4z-12=0
We move all terms containing z to the left, all other terms to the right
4z=12
z=12/4
z=3
| (2a+24)+a=180 | | 12z-11z+z-z=8 | | 7v-22=-3(4-3v) | | 5s-s-3s-s+s=15 | | 25+d-25=36 | | 15/2x+15+30=54 | | 21x-7-17x+2=17x-3-13x+15 | | 17x+23=23x+11 | | 5=4.25x+.25x^2 | | 24x/12+5-5=104 | | 3y^2=63 | | x-4+1+2x=90 | | 8j+j+3=3(3j=1) | | 2x+2=41 | | 17x-18/6x^2+x-2=1 | | (5x)(5x)=80 | | 2x*4=106 | | 2x*4-41=106 | | 6+11x=-6 | | 2x*4/41=106 | | 20x/10+7=12+12 | | a➗3+7=10 | | 4x-30=x-3 | | 2x+41=106 | | 3x+6+4x+4=5x^2+15x+10 | | x*4x=1024 | | 30/2x+6=15 | | 10x=1024 | | 4x+28=55 | | 6(-x+2x-12x)=34 | | 5/16+3f=-2/3 | | 2/3x+1/2x-4=3 |