I think it 2 because did on paper
Substitute y
3(6x+2)-18x=12
18x+12-18x=12
18x-18x=0
0=0
Solution: Infinitely many solutions
Hoped this helped!<span />
Answer:
PE = 83 and Science = 71
Step-by-step explanation:
let P represent PE and S represent Science with P > S, then
P + S = 154 → (1)
P - S = 12 → (2)
Adding the 2 equations term by term eliminates S
2P = 166 ( divide both sides by 2 )
P = 83
Substitute P = 83 into (1)
83 + S = 154 ( subtract 83 from both sides )
S = 71
Hence PE mark = 83 and Science mark = 71
Look Up Express 90 as the product of its prime number in orderAnd Read About Prime Numbers...
