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photoshop1234 [79]
3 years ago
8

Two equations are given below:

Mathematics
1 answer:
Sindrei [870]3 years ago
8 0
\left \{ {{a - 3b = 16} \atop {a = b - 2}} \right.  \\  \\  \left \{ {{a = 16 + 3b} \atop { 16 + 3b = b - 2}} \right.  \\  \\  \left \{ {{a = 16 + 3b} \atop {3b - b = - 2 - 16}} \right.  \\  \\  \left \{ {{a =16 + 3b} \atop {2b  = -18}} \right.  \\  \\  \left \{ {{a=16 + 3b} \atop {b=-9}} \right.  \\  \\  \left \{ {{a=16 + 3b = 16 + 3*(-9) = 16 - 27 = -11} \atop {b=-9}} \right.

Answer a = -11, b = -9
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