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7x+23-3(x-5)=0
We multiply parentheses
7x-3x+15+23=0
We add all the numbers together, and all the variables
4x+38=0
We move all terms containing x to the left, all other terms to the right
4x=-38
x=-38/4
x=-9+1/2
| 5a=115 | | 7x+23=3x+47 | | y-7/8=-3/8 | | (x-6)(36^2+53x+10)=0 | | x+4x+6=38 | | -7x-1x+8=0 | | 3(x+5)=4x-9 | | -36=14+x | | 4.3^x=6.4 | | 4x-42=-x+8 | | x+4x+x+6x+x+8x+x=11 | | -2x+6=x-36 | | 3(x+2)=x+24 | | 104=9c/5+32 | | -2x+2=-36 | | -6x+3.9=8x-73 | | x6−15=73 | | |2-0.25x|+4=17 | | 5+3n=n-1 | | Y=(3x^2+2) | | 6(x–9)=22 | | 2y+4y+6y/3=80 | | 7-2x+2=-36 | | 4x+2=5.6 | | 2y+4y+6y=80 | | 4/8=n/19 | | x=(25-x)(x-7) | | 2y+4y+6y=80/3 | | Y=15x+9=180 | | x=16/9 | | 7x^2=-14x-5 | | y=20(0.5)^5 |