1.
Solve
x
+ 4 = 7.
A.
–3
B.
11
C.
3
D.
–11
Hint
2.
Solve
z
+ 6 = 3.
A.
–9
B.
–3
C.
9
D.
3
Hint
3.
Solve –2 +
d
= –4.
A.
–2
B.
–6
C.
2
D.
6
Hint
4.
Solve
t
+ 3 = –2.
A.
2
B.
–5
C.
–3
D.
1
Hint
5.
Decide which addition equation the model represents. Then solve the equation.
A.
y
– 7 = 2;
y
= –5
B.
y
+ 2 = –7;
y
= –9
C.
y
– 7 = 2;
y
= 9
D.
y
+ 2 = –7;
y
= –5
Hint