Answer:
12
Step-by-step explanation:
find 20% of 15 and then take that away from the 15
X + y = 24....multiply by -3
3x + 5y = 100
---------------
-3x - 3y = - 72 (result of multiplying by -3)
3x + 5y = 100
----------------add
2y = 28
y = 28/2
y = 14 <== 5 pointers
x + y = 24
x + 14 = 24
x = 24 - 14
x = 10 <== 3 pointers
Answer:
1.) -90, -69, -49, 85
2.) -23, -17, -1, 69
3.) -93, -78, -16, 61
Step-by-step explanation:
Answer:
4x - 3y = 36
Step-by-step explanation:
2/3x - 1/2y = 6
Multiply each side by 6 to get rid of the fractions
6* (2/3x - 1/2y) = 6*6
Distribute the 6
12/3 x - 6/2y = 36
4x -3y = 36
1. y = -4 - 3x
7x + 4(-4 - 3x) = -21
7x - 16 - 12x = -21
-5x = -5
x = 1
y = -4 - 3= -7
2. y = 6
-8x + 42 = -6
48 = 8x
x = 6