x + y = 15
4x + 3y = 38
from the first equation, y = 15-x
substitute this value in the second equation as follows:
4x + 3(15-x)= 38
4x + 45 - 3x = 38
x + 45 = 38
x = 38 - 45
so, x = -7
substitute this value to solve for y:
y = 15 -x
y = 15-(-7)
y = 22
It equals 285
45
-15
30
-9
15 plus -3 equals 12 12 divided by -6 equals -2
8 plus 15 = 23
-15 plus 20 is 5.
No. It equals 15.
no
That equals 28
Negative 15 plus positive 20 equals 20 minus 15, which equals 5.