Tolong dijawab ya

a + 3 = 5 - a a + a = 5 - 3 2a = 2 a = 2/2 a = 1 8 + b = 4 - b b + b = 4 - 8 2b = -4 b = -4/2 b = -2 -1 + c = c - c -1 + c = 0 c = 0 + 1 c = 1 d + (-9) = -13 - d d + d = -13 + 9 2d = -4 d = -4/2 d = -2 Untuk membuktikan kebenaran pada nilai a, b, c, dan d dapat kita substitusikan nilai yang didapat agar hasil matriks sama, yaitu: Nilai a = 1 >> a + 3 = 5 - a >> 1 + 3 = 5 - 1 >> 4 = 4 Nilai b = -2 >> 8 + b = 4 - b >> 8 + (-2) = 4-(-2) >> 6 = 6 Nilai c = 1 >> -1 + c = c - c >> -1 + 1 = 1 - 1 >> 0 = 0 Nilai d = -2 >> d + (-9) = -13 - d >> -2 + (-9) = -13 - (-2) >> -11 = -11 Semoga membantu!