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find a solution method use backtracking to solve equation;

54=6 (4-7V)
_______
2
7b+1 =2
__________
4 8(56+12 -1) =64
_____3______

How many equations are there? They are too jumbled up to make any sense. I see three equal signs and two unknowns.

What is the meaning out
_____3______ in the last line?
it looks like a fraction with no denominmator.

the 3 is under 5b+12 -1)=64

it was 3 questions.

and 2 is under the 4-7v and the 4 is under the7b+1 =2 .the 3 is under(56+12)=64

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use backtracking to solve each e quations ?