42x-378=840

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Solution for 42x-378=840 equation:



42x-378=840
We move all terms to the left:
42x-378-(840)=0
We add all the numbers together, and all the variables
42x-1218=0
We move all terms containing x to the left, all other terms to the right
42x=1218
x=1218/42
x=29

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