x) - 3" alt="18x + 20 + x = 10(x) - 3" align="absmiddle" class="latex-formula">
2 answers:
assuming you want us to solve for x
remember that you can do anything to an equation as long as you do it to both sides
18x+20+x=10x-3
combine like terms
19x+20=10x-3
minus 10x from both sides
19x-10x+20=10x-10x-3
9x+20=0-3
9x+20=-3
minus 20 from both sides
9x+20-20=-3-20
9x+0=-23
9x=-23
divide both sides by 9




18x + 20 + x = 10x -3
Combine like terms
19x + 20 = 10x -3
Subtract 20 to both sides because whatever you do on one side you have to do it on the other side:
19x = 10x -23
Subtract 10x
9x = -23
Divide 9 to isolate x:
x = -23/9
Simplify to get a mixed number:
x = -2 5/9
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