Answer:
Step-by-step explanation:
It is 15 3/4 Because 2 negatives equal a positive
and that means u add ur whole numbers. The Denominator stays the same the top number gets added or multiplied
if its right Mark brainliest u dont have to
Answer:
y=3 x= -5/2
Step-by-step explanation:
simultaneous equations
2x + 4y = 7 ------ eq 1
-2x + 3y = 14 --------eq2
(different signs add)
(eq 2 + eq 1)
-2x +(-2x) = 0
4y+3y = 7y
7+14 = 21
7y= 21
(divide both sides by 7)
y= 21/7= 3
2x + 4(3) = 7
2x+ 12=7
2x = 7-12
2x = -5
x= -5/2
The answer is b associative property
Sorry I’m answering because I need to answer 2 questions in order to ask something