Answer:
Step-by-step explanation:
6x-5y=15
x=y+3
6x-5+3=15
-3 -3 (take from both sides)
6x-5=12
+5 +5 (add to both sides)
6x=15
6 /15=.4
x=.4
y=+3
I probably did that wrong but that i the overall concept
Answer:
x=0
y=-3
the problem is true
(i dont know i tried)
Answer:
20
Step-by-step explanation:
25=50% so minus 5
Answer:
20
Step-by-step explanation:
Multiply 50 by 0.4
Answer:
The problem isn't copied out correctly. the first $20 should be $10
Step-by-step explanation:
5x - 2y +3x