Answer:a and d
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
4 goes perfectly into 8 twice and 12 three times
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 x 200
Answer:
x = -3
y = 7
Step-by-step explanation:
x + 3y = 18
-3x - 12y = -75
multiply first equation by 4
4 × (x + 3y) = 18 ➡ 4x + 12y = 72
now add the two equations up
4x + 12y - 3x -12y = 72 - 75 (-12y will eliminate 12y)
x = -3
