Question

x + 2 = 9
-2 -2
x =

x + 10 = 13
-10 -10
x =

x + 57 = 63

• -

x =

Explanation:

Step1: Solve \( x + 2 = 9 \)

Subtract 2 from both sides: \( x+2 - 2=9 - 2 \), so \( x = 7 \).

Step2: Solve \( x + 10 = 13 \)

Subtract 10 from both sides: \( x + 10-10=13 - 10 \), so \( x = 3 \).

Step3: Solve \( x + 57 = 63 \)

Subtract 57 from both sides: \( x+57 - 57=63 - 57 \), so \( x = 6 \).

Answer:

For \( x + 2 = 9 \), \( x = 7 \); for \( x + 10 = 13 \), \( x = 3 \); for \( x + 57 = 63 \), \( x = 6 \)