If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-6a+3(5a+3)=81
We simplify the equation to the form, which is simple to understand
-6a+3(5a+3)=81
Reorder the terms in parentheses
-6a+(+15a+9)=81
Remove unnecessary parentheses
-6a+15a+9=+81
We move all terms containing a to the left and all other terms to the right.
-6a+15a=+81-9
We simplify left and right side of the equation.
+9a=+72
We divide both sides of the equation by 9 to get a.
a=8
| 25x+10=30x+7 | | log(x)+log(x+9)=1 | | 4a^2-36b^2=0 | | 307=-6(-1-7x)+x | | -14+3(x+10)=7(-2m+5)-4 | | 4k^2-100=0 | | -11x+2x=104 | | 3x+4x=105 | | m+5m=42 | | 4x+5(3x-6)+3= | | 3x+x+8x=68 | | 5p+7p=48 | | -2x-7+3x=2 | | 4+2v=-6 | | -267=8(8b+6)-b | | 8-(3n-9)=1-4n | | 16=-2+3y | | 5a+6b-7+12b-4a= | | s-4-10= | | 4x-5+16x= | | 2m-2=4m | | 4k^2+4k-5=0 | | 2(x+4)=x+11 | | -2m=16-1m | | 10+2r=7x+3 | | 15x^5+21x^4-18x^3=0 | | (6+3x)2=4x-2 | | 10x+7y=7 | | 3m^3-3m+0=0 | | 2.3(3b-4)=3.5b-6b | | x(3x-8)=-5 | | 3n+-7n= |