X = -2 + y
-16x - 3y = -25
Let's substitute x into the second equation, since the first equation already tells us what x is.
Multiply -16 by x, which is (-2 + y)
-16(-2 + y) -3y = -25
Simplify.
32 -16y -3y = -25
Simplify. Get the variable on one side.
-19y = -57
Divide both sides by -19 to solve for the variable.
y = 3
Now plug y = 3 into one of the equations to find x. I'll use the first equation, since it's easier.
x = -2 + y
x = -2 + 3
x = 1
The answer is x= 1, y =3, which may be written as (1, 3). Hope this helps.
(-1, 3) means x = -1 and f(x) = 3
so answer
f(-1) = 3
Answer:
The first step in evaluating {[(−)]}÷ is operating the brackets
Step-by-step explanation:
To find the first step in evaluating {[(−)]}÷ :
In general we may use BODMAS operation to evaluate the expression and is stands for
BODMAS- B for Brackets in the expression
O for operations in brackets for the expression
D for doing division operation in the expression
M for doing multiplication operation in the expression
A for doing addition operation in the expression
S for doing subtraction operation in the expression
Applying all the operations and finally weget the evaluated expression or values.
Therefore the first step in evaluating {[(−)]}÷ is operating the brackets
29, 31, 33, 35
29+31+33+35=128