Write an equivalent expression 3c + 7 + 12d - 6d + 4c + 5 = ?c + ?d + ?

7c +6d +12

Step-by-step explanation:3c + 7 + 12d - 6d + 4c + 5 = ?c + ?d + ?

                                       3c + 4c  +12d - 6d +7 +5

                                       = 7c +6d +12

You combine like terms which are 3c and 4c which gives you 7c .Next you combine 12d and 6d but this time u need to subtract since it has subtact sign in between 12d and 6d which gives you 6d.After that you combine 7 and 5 which u get 12 .Lastly you put all of the tersm together which are 7c and 6d and 12 which get you 7c +6d +12  as your equivalent expression.

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x = 3

Step-by-step explanation:

Given

5(2x + 1) = 35 ( divide both sides by 5 )

2x + 1 = 7 ( subtract 1 from both sides )

2x = 6 ( divide both sides by 2 )

x = 3