x=-4 and y=6
-y+2x
Plug in the values of x and y into the given expression:
-(-4) + 2(6) = 4 + 12 = <<4+12=16>>16
Step 1: Substitute the given values of x and y into the expression -y+2x.
-y+2x = -(6) + 2(-4)
Step 2: Multiply 2 by -4.
= -(6) + (-8)
Step 3: Add -6 and -8.
= -6 - 8
Step 4: Simplify the expression.
= -14
Therefore, when x = -4 and y = 6, -y+2x evaluates to -14.