Question

Fill in the blanks to explain what needs to be done in the current step to get to the next step.

3x+4−2x+9=17−x
3
�
+
4
−
2
�
+
9
=
17
−
�
Step 1: 3x+4−2x+9=17−x
3
�
+
4
−
2
�
+
9
=
17
−
�


Step 2: x+13= 17−x
�
+
13
=

17
−
�


Step 3: x+x+13=17−x+x
�
+
�
+
13
=
17
−
�
+
�


Step 4: 2x +13 = 17
2
�

+
13

=

17


Step 5: 2x+13−13=17−13
2
�
+
13
−
13
=
17
−
13


Step 6: 2x=4
2
�
=
4

Step 7: x = 2
�
=
2

Answer 1

Combine like terms on both sides of the equal sign in step 1.

Answer 2

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