How do you solve −7−4a=−7+6a−4a?
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Step-by-step explanation:
-7-3a = -7+6a-4a
1. add the like terms in each side
-7-3a = -7+2a
2. put the like terms on the same side
-7+7 = 2a+3a
3. add the like terms together
0=5a
a=0
this means the expression has no meaning
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