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3*42-(7+3)/2+5=0
We simplify the equation to the form, which is simple to understand
3*42-(7+3)/2+5=0
Simplifying:
+126-(7+3)/2+5=0
Simplifying terms in parentheses
+126-(+10)/2+5=0
Reorder the terms in parentheses
+126-(+5)+5=0
Remove unnecessary parentheses
+126-5+5=0
We move all terms containing to the left and all other terms to the right.
0=0-126+5-5
We simplify left and right side of the equation.
0=-126
0=-126
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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