If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x+2.5=12x-5.5x+9
We move all terms to the left:
3x+2.5-(12x-5.5x+9)=0
We add all the numbers together, and all the variables
3x-(6.5x+9)+2.5=0
We get rid of parentheses
3x-6.5x-9+2.5=0
We add all the numbers together, and all the variables
-3.5x-6.5=0
We move all terms containing x to the left, all other terms to the right
-3.5x=6.5
x=6.5/-3.5
x=-1+1/1.1666666666667
| -4(8x+7)=132 | | (7x+16)+39+90=180 | | 250^2+250000+35000=x | | (3x+7)x=40 | | 260=-5(4-8x) | | x^2x+-11x+18=180 | | (17x+6)+(7x+)=180 | | (7x-17)+42+78=180 | | 10w-13=17 | | 5(6x+5)=-95 | | 21x23=483 | | 3x+2.5=12x-5.5x+3 | | 3x^2+100x+35000=242900 | | 19y-10=351 | | 3x^2+100x+35000=260000 | | -2(5-6x)=-46 | | |6a-4|=-2 | | -8,75+14=-5.25x-3.5 | | 3x^2+100x+35000=231800 | | 2x-10+3x+5=180 | | 4x+15+5x+3+90=180 | | -7+p=11 | | -434=7(8x+2) | | 3x+4=184 | | 4(1.75-0.5y)=7 | | 3x^2+100x+35000=36300 | | -6+p/11=-3 | | x+17+2x-5=180 | | 100=-5(-7x+1) | | 10y-40=100 | | 17x+6=7x+6 | | 2(4x+8)=5x-8 |