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Jawaban Terkonfirmasi
4.
A = 3x – 2
B = 2x – 4
A + B = (3x + 2x) + ((- 2) + (- 4)) = 5x – 6
B + A = (2x + 3x) + ((- 4) + (- 2)) = 5x – 6
A – B = (3x – 2x) + ((- 2) – (- 4)) = x + 2
B – A = (2x – 3x) + ((- 4) – (- 2)) = – x – 2
6.
A = 2x – 1
B = 1 – x
A + B = (2x + (- x)) + ((- 1) + 1) = x
B + A = ((- x) + 2x) + ( 1 + (- 1)) = x
A – B = (2x – (- x)) + ((- 1) – 1) = 3x – 2
B – A = ((- x) – 2x) + (1 – (- 1)) = – 3x + 2
Maaf Kalau Salah