1
x
2
+
7
x
=
3
Equation
Formula
Identity
Expression
✗
✓
2
y
3
-
x
y
+
4
Equation
Formula
Identity
Expression
✗
✓
3
v
=
1
3
π
r
2
h
Equation
Formula
Identity
Expression
✗
✓
4
4
e
2
=
2
e
2
e
Equation
Formula
Identity
Expression
✗
✓
5
A
=
1
2
b
h
Equation
Formula
Identity
Expression
✗
✓
6
9
+
3
z
+
y
5
Equation
Formula
Identity
Expression
✗
✓
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