Question

Дана система уравнений {ax−3y=35 5x+by=-2 Известно, что пара чисел (2;3) является её решением. Определи значения a и b. Ответ: a= b= Смотреть ответ Evgenia4836 Evgenia4836 2a-9=35 10+3b=-2 2a=44 3b=-12 a=22 b= -4

Answer 1

To verify the values of a and b for the given system of equations, let's substitute the values x=2 and y=3 into the equations:

1. For the first equation: ax - 3y = 35 Substituting x=2 and y=3: 2a - 3(3) = 35 2a - 9 = 35 2a = 35 + 9 2a = 44 a = 44/2 a = 22

2. For the second equation: 5x + by = -2 Substituting x=2 and y=3: 5(2) + 2b = -2 10 + 2b = -2 2b = -2 - 10 2b = -12 b = -12/2 b = -6

Therefore, the correct values for a and b are: a = 22 b = -6