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4+15x=-1

We move all terms to the left:

4+15x-(-1)=0

We add all the numbers together, and all the variables

15x+5=0

We move all terms containing x to the left, all other terms to the right

15x=-5

x=-5/15

x=-1/3

| -2-8x-9=-9x-10 | | 5–10=5(x–2) | | 5x=7=73 | | -3-4y=20 | | X+3(x/2)+90=180 | | (12,3)m=-4 | | 0.12x=23270 | | -8p-11=-43 | | 2x-10=72 | | 4r=-5r+9r | | (3x-5)(x-2)(x+1)=0 | | 17=3x-429 | | 3x-4°=5x-18° | | 2x+12=7x-5 | | 0.17y+0.05(y+9000)=1110 | | 60=4(k+3)+2(k-3)= | | 0.16y+0.8(y+4000)=1040 | | 130?x?50=110 | | -2n+1=15 | | 14=5x+105° | | 105+5x=7 | | m+9=15 | | 9x-7+7=52+7 | | 7/2x+1/2x=21/1+5/2x | | 0.12y+0.06(y+8000)=2100 | | 203=15-v | | 14-5=-2a+5-5 | | 5+4e=25;-5 | | 2x^2-12x=6=0 | | 58+69+x=180 | | 4x+10+3x+24=110 | | 189.98=9/5c+32 |

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