Solve Systems Using Matrix Row Operations

Solve the system of equations using a matrix. $$a+b+c+d=10\\ 7a+9b+3c+3d=46\\ a-6b-5c+4d=-10\\ a-5b+10c-5d=1\\$$ If the solution is $(a,b,c,d)$, enter in the value of $1000a + 100b + 10c + d$ as your answer, without commas or spaces.