5x + y = 3
y = 3 - 5x
Substitute this value into second equation,
8x + 5y = 7
8x +5(3 - 5x) = 7
8x + 15 - 25x = 7
-17x = 7 - 15
x = 8/17
Now, substitute it into first equation,
y = 3 - 5x
y = 3 - 5*8 / 17
y = 3 - 40/17
y = 11/17
In short, Your Answers would be: x = 8/17 & y = 11/17
Hope this helps!
Step-by-step explanation:
6x-7
= 6×2-7
=12-7
=5
b) 3x
=3×2
=6
Answer:
28.6%
Step-by-step explanation:
|42 − 30| / 42 × 100% = 28.6%
Answer:
Step-by-step explanation:
15x13=?
15+15+1=31
so the answer is 31
1/2 + (-3/4)
= 1/2 - 3/4
= 2/4 - 3/4
= -1/4