Answer:C
Step-by-step explanation:
Answer:
-17 x + 60 y + 33
Step-by-step explanation:
3(7-3x+8y)-4(2x-9y-3)
Distribute
21 -9x+24y -8x +36y +12
Combine like terms
21+12 -9x-8x+24y +36y
33 -17x +60y
Rearringing the terms
-17 x + 60 y + 33
Answer:
A.
Step-by-step explanation:
4y = 12x + 16
3x = y - 4
=>
y = 3x + 4
using that in the first equation
4(3x+4) = 12x + 16
12x + 16 = 12x + 16
=> both lines/equations are identical, so they have infinitely many solutions.
The symmetric property of equality states : a = b, then b = a.
so ur property above ^^ is symmetric
Answer:
Step-by-step explanation:
5x+2y=9.......(1)
x+y= -3.........(2)
Making y as subject bin (2)
y = -3 - x
Substituting in (1)
5x + 2(-3 - x) = 9
5x - 6 - 2x = 9
3x = 9 + 6
3x = 15
x = 15/3
x = 5
And y = -3 - x
y = -3 - 5
y = -8