Answer:
4
Step-by-step explanation:
Simply, replace the values we are given for x=4 and y=(-2) into the expression.
5(x + y) – 3(x – y)
5*(4 - 2) - 3*(4 -2)
20 - 10 - 12 + 6 = 4
Answer:
The value of given expression 5(x + y) -3(x - y) when x = 4 and y = -2 is -8
Solution:
From question, given that
5(x + y)-3(x - y) ---- eqn 1
Given that x = 4 and y = -2
On substituting x = 4 and y = 2 in equation 1, we get
=5(4 - 2) – 3 (4 + 2)
On simplifying above expression
=5(2) – 3(6)
= 10 -18
= -8
Hence value of given expression 5(x + y) -3(x - y) when x = 4 and y = -2 is -8
