3 years ago

How do you solve 2z - 31 = -9z + 24?

2 answers:

6 0

2z−31=−9z+24

Add 9z to both sides.

2z−31+9z=−9z+24+9z

11z−31=24

Add 31 to both sides.

11z−31+31=24+31

11z=55

Divide both sides by 11.

11z/11=55/11

z=5

Oksana_A [137]3 years ago

3 0

2z - 31 = -9z + 24
+9z +9z
11z - 31 = 24
+31 +31
11z = 55
÷11 ÷11
z = 5

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