Solve and classify the given system of linear equations. s = 5+t
-t + s = 2

infinitely many solutions, inconsistent

O no solution; inconsistent

no solution, consistent

O infinitely many solutions; consistent

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

b. b < 1 might be the correct answer