Answer:
huh?
Step-by-step explanation:
Minute? Hour?
-3 1/2 = 1/2x + 1/2x + x
- 7/2 = 2x
(-7/2) / 2 = x
-7/2 * 1/2 = x
- 7/4 (or - 1 3/4) = x
Answer:
259.60-300=-40.4
Step-by-step explanation:
Answer:
y=5 x=13
Step-by-step explanation:
solve simultaneously
4x-9=7
+-4x+6y=8
---------------
3y=15
y=5
substitute y value into first equation
4x-9(5)=7
4x-45=7
4x=52
x=13
