If it's not what You are looking for type in the equation solver your own equation and let us solve it.
.251a+.5=4.5
We move all terms to the left:
.251a+.5-(4.5)=0
We add all the numbers together, and all the variables
.251a-4=0
We move all terms containing a to the left, all other terms to the right
.251a=4
a=4/.251
a=15+0.235/.251
| 14x-142=6x-14 | | -2/2x-2=5(x-1) | | (z+2)^2=-11 | | 2x+22=4x+23 | | 19x+15=18x-7 | | (z+2)^2=11 | | 43-6x=15+8x | | -5(x-2)=6x-8x+34 | | 6x=x-110 | | X/20=x-4/5 | | x/12-6=23/24 | | 45+9n=45+9n | | 1/5x+3=3/10x−2 | | |2a-10|=6 | | (1/5)x+3=(3/10)x−2 | | 0.3(x+6)=0.5(x-3) | | 2(5x-2)=1 | | y/10+4=-18 | | 5x−1=−4x+8 | | 4+m^2=68 | | 49y=-35y | | 100x2-16=0 | | 450-72=(2n-5)18 | | 2x^2-9x-32=0 | | -3/2x+7=3x-2 | | -6=2/3x+2 | | 3x+2+5x-9=9x-12 | | 25x^2+25x-5=0 | | 450=(2n-5)18 | | 35k-12=17k | | 5x-2(x-7)=0 | | 2x+5+4x-2=45 |