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420\times 10^{6}=900\times 151\times 497y\left(350-\frac{151.497}{3}\right)+87.6\times 900\times 8\times 290
Consider the second equation. Multiply both sides of the equation by 6, the least common multiple of 2,3.
420\times 1000000=900\times 151\times 497y\left(350-\frac{151.497}{3}\right)+87.6\times 900\times 8\times 290
Calculate 10 to the power of 6 and get 1000000.
420000000=900\times 151\times 497y\left(350-\frac{151.497}{3}\right)+87.6\times 900\times 8\times 290
Multiply 420 and 1000000 to get 420000000.
420000000=135900\times 497y\left(350-\frac{151.497}{3}\right)+87.6\times 900\times 8\times 290
Multiply 900 and 151 to get 135900.
420000000=67542300y\left(350-\frac{151.497}{3}\right)+87.6\times 900\times 8\times 290
Multiply 135900 and 497 to get 67542300.
420000000=67542300y\left(350-\frac{151497}{3000}\right)+87.6\times 900\times 8\times 290
Expand \frac{151.497}{3} by multiplying both numerator and the denominator by 1000.
420000000=67542300y\left(350-\frac{50499}{1000}\right)+87.6\times 900\times 8\times 290
Reduce the fraction \frac{151497}{3000} to lowest terms by extracting and canceling out 3.
420000000=67542300y\times \frac{299501}{1000}+87.6\times 900\times 8\times 290
Subtract \frac{50499}{1000} from 350 to get \frac{299501}{1000}.
420000000=\frac{202289863923}{10}y+87.6\times 900\times 8\times 290
Multiply 67542300 and \frac{299501}{1000} to get \frac{202289863923}{10}.
420000000=\frac{202289863923}{10}y+78840\times 8\times 290
Multiply 87.6 and 900 to get 78840.
420000000=\frac{202289863923}{10}y+630720\times 290
Multiply 78840 and 8 to get 630720.
420000000=\frac{202289863923}{10}y+182908800
Multiply 630720 and 290 to get 182908800.
\frac{202289863923}{10}y+182908800=420000000
Swap sides so that all variable terms are on the left hand side.
\frac{202289863923}{10}y=420000000-182908800
Subtract 182908800 from both sides.
\frac{202289863923}{10}y=237091200
Subtract 182908800 from 420000000 to get 237091200.
y=237091200\times \frac{10}{202289863923}
Multiply both sides by \frac{10}{202289863923}, the reciprocal of \frac{202289863923}{10}.
y=\frac{790304000}{67429954641}
Multiply 237091200 and \frac{10}{202289863923} to get \frac{790304000}{67429954641}.
x=\frac{\frac{790304000}{67429954641}}{151.497}\left(151-497-60\right)
Consider the first equation. Insert the known values of variables into the equation.
x=\frac{790304000}{67429954641\times 151.497}\left(151-497-60\right)
Express \frac{\frac{790304000}{67429954641}}{151.497} as a single fraction.
x=\frac{790304000}{10215435838247.577}\left(151-497-60\right)
Multiply 67429954641 and 151.497 to get 10215435838247.577.
x=\frac{790304000000}{10215435838247577}\left(151-497-60\right)
Expand \frac{790304000}{10215435838247.577} by multiplying both numerator and the denominator by 1000.
x=\frac{790304000000}{10215435838247577}\left(-346-60\right)
Subtract 497 from 151 to get -346.
x=\frac{790304000000}{10215435838247577}\left(-406\right)
Subtract 60 from -346 to get -406.
x=-\frac{45837632000000}{1459347976892511}
Multiply \frac{790304000000}{10215435838247577} and -406 to get -\frac{45837632000000}{1459347976892511}.
x=-\frac{45837632000000}{1459347976892511} y=\frac{790304000}{67429954641}
The system is now solved.