Solve for x. -3(x+n)=x

a 10 percent increase

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you can't solve x because it is 2 linear equation and you only have one equation

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,