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solve for what?
no, I mean that you have two unknowns and one equation, so you can't get a number answer
so do you want it solved for a or b ?
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Its my sons homework here is the problem the way its on the sheet.
that changes things...
you need as many equations as unknowns to solve a problem, so the other equation is essential
substitute the second expression for 'a' into the first equation:
this can be solved for b
once you have the value of b plug that number into the second equation, which gives you the value of a.
so would i subtract the b or the 7 from the 6
collect like terms:
then subtract 7 from both sides
yes, now plug that into b in the second equation
and you will get a