A
given the 2 equations
y = 11x + 1 → (1)
11x + 12y = 12 → (2)
substitute y = 11x + 1 into (2)
11x + 12(11x + 1) = 12
11x + 132x + 12 = 12
143x + 12 = 12 ( subtract 12 from both sides )
143x = 0 ⇒ x = 0
substitute x = 0 into (1)
y = 0 + 1 = 1
the required value is y = 1 → A
Answer: 1
Step-by-step explanation:
y = 11 x + 1
11 x + 12 y = 12
----------------------
11 x + 12 * ( 11 x + 1 ) = 12
11 x + 132 x + 12 = 12
143 x + 12 - 12 = 12 - 12
143 x = 0
x = 0
y = 11 * 0 + 1
y = 0 + 1
