1.

Add 3 x + 11 +8z and 7x -5+3z

Answer»

Step-by-step EXPLANATION:

( 3x + 11 + 8z ) + ( 7x - 5 + 3Z )

= 3x + 11 + 8z + 7x - 5 + 3z

= 10x + 6 + 11z



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