Jimromero79
Jimromero79
18-01-2015
Mathematics
contestada
The question is 7a +10 = 2a
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eternal3fear
eternal3fear
18-01-2015
7a + 10 = 2a subtract 2a from both sides
-2a -2a
5a + 10 = 0 subtract 10 from both sides
-10 -10
5a = -10 then divide both sides by 5
/5 /5
a = - 2
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julie00
julie00
18-01-2015
7a+10=2a
Subtract 7a from both sides.
10=-5a
Divide 10 by -5.
-2=a or a=-2
Answer Link
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