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OpenStudy (anonymous):
20x - 2 = 18x - 4
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OpenStudy (cggurumanjunath):
20x-2=18x-4 add 2 on both sides 20x-2+2=18x-4+2 20x=18x-2 add -18x on both sides 20x-18x=18x-2-18x 2x=-2 divide 2 on both sides 2x/2=-2/2 x=-1
OpenStudy (anonymous):
20x-2=18x-4 combine like terms and subtract 18x on both sides 2x-2=-4 add two to both sides 2x=-2 divide by two on each side x=-1
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