Diketahui A=2x-1 dan B=1-x tentukan:A-B=A+B=B+A=B-A=
Penjelasan dengan langkah-langkah:
A = 2x – 1
B = 1 – x
A – B = (2x – 1) – (1 – x) = 3x – 2
A + B = (2x – 1) + (1 – x) = x
B + A = (2x – 1) + (1 – x) = x
B – A = (1 – x) – (2x – 1) = – 3x + 2