Solve for a
a=-152746
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1988=a+154734
Multiply 697 and 222 to get 154734.
a+154734=1988
Swap sides so that all variable terms are on the left hand side.
a=1988-154734
Subtract 154734 from both sides.
a=-152746
Subtract 154734 from 1988 to get -152746.
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Matrix
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