Using Inverse Operations Worksheet With Answer Key
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1Using Inverse Operations
Use inverse operations to solve for “y”.
2 +
y
1
8
y
3
+
1. 3x + 5y = 9
2.
x
3. x = 4y – 5
4.
3
x
=
=
6
2
2
1
5. 5y = 2x + 10
6.
x
y
14
7. 10 = 4y – 3x
8.
4
x
y
6
=
−
=
+
3
3
Solve for the indicated variable.
9. for “b”:
A =
bh
10. for c: P = a + b + c
11. for y: Ax + By = C
12. for a: y = ax + b
2
2
2
15. for r: A = Œ7
2
o
13. for c: a
+ b
= c
14. for l: P = 2l + 2w
16. for B: A + B + C = 180
9
3
x
6 −
x
1
x
5
6 −
x
3
2 +
x
10
( 3 +
x
14
)
−
+
Answers: 1.
y
2.
y
3.
y
4.
y
5.
y
6.
y
=
=
=
=
=
=
5
2
4
8
5
2
10
3
x
A
C
Ax
y
b
+
−
−
7.
y
8.
3
4 (
) 6
9.
b =
10. c = P – a – b
11.
y
12.
a
y
x
=
=
−
=
=
4
h
B
x
P
2w
A
−
o
2
2
13.
c
a
b
14.
l
15.
r =
16. B = 180
– A – C
=
+
=
2
π
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