Step: Solve
2
x
+
y
=
3
for y:
2
x
+
y
=
3
2
x
+
y
+
−
2
x
=
3
+
−
2
x
(Add -2x to both sides)
y
=
−
2
x
+
3
Step: Substitute
−
2
x
+
3
for
y
in
4
x
+
3
y
=
1
:
4
x
+
3
y
=
1
4
x
+
3
(
−
2
x
+
3
)
=
1
−
2
x
+
9
=
1
(Simplify both sides of the equation)
−
2
x
+
9
+
−
9
=
1
+
−
9
(Add -9 to both sides)
−
2
x
=
−
8
−
2
x
−
2
=
−
8
−
2
(Divide both sides by -2)
x
=
4
Step: Substitute
4
for
x
in
y
=
−
2
x
+
3
:
y
=
−
2
x
+
3
y
=
(
−
2
)
(
4
)
+
3
y
=
−
5
(Simplify both sides of the equation)
Answer:
x
=
4
and
y
=
−
5
Answer:
5 + 52.25x
Step-by-step explanation:
flat rate plus cost per pound times number of pounds
5 + 52.25x
Answer:
$3175
Step-by-step explanation:
Substitute the equation with the numbers.
Interest = P x R x T
Interest = 2500 x 0.045 x 6
I = 675
Add the interest amount with the original amount.
675 + 2500 = 3175
I hope this helps and please mark me as brainliest!
Answer:
12. (-5)= -60
Step-by-step explanation:
