What is the solution to the system of equations below?

y = three-fourths x minus 12 and y = negative 4 x minus 31
(–4, –15)
(–4, –12)
(4, –9)
(4, –47)

answer: 0+0=0

step-by-step explanation:

that is the only answer that can make 0

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation:

step-by-step explanation:

im not sure what the answer is

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629