If it's not what You are looking for type in the equation solver your own equation and let us solve it.
6x-21-4x=19
We move all terms to the left:
6x-21-4x-(19)=0
We add all the numbers together, and all the variables
2x-40=0
We move all terms containing x to the left, all other terms to the right
2x=40
x=40/2
x=20
| 2v-13+v+20+4v+10=180 | | 150x-75x+56,375=53,075-200x | | 38+5c-26+9c=180 | | 16=11v-7v | | -0.6x=-0.84 | | 31+3v+4v-5=180 | | k/3.6=-4.6 | | 4^n=7 | | v+6+2v-8+4v=180 | | 102=-17k | | y=-41.7*298.2-283.2 | | 115=(20+1x)+(20+5x) | | v+12+3v-19+v+12=180 | | F(x)=2x2-3x-5 | | -2.5=a-3.1 | | 10c-37=4c+5 | | 2z+51+2z+19=180 | | 3w+8=90 | | 13v-35+19v-50+21v=180 | | x-15.8=-25.4 | | x–18=54 | | 1+2/3y=−7 | | 3n+40=85 | | y=-93*93-40 | | y-2+3y+y-8=180 | | 2z+z+30+3z=180 | | (7x+2)=x | | 4.50=0.10r | | −2b=44. | | y=-81*91-33 | | 15=4d | | r+16.7=5.4 |