1. 2(3x – 4) + 10 = 5(x + 4)
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Step-by-step explanation:

Isolate x on one side of the equation.

DISTRIBUTIVE PROPERTY:

A(B+C)=AB+AC

A(B-C)=AB-AC

2(3x – 4) + 10 = 5(x + 4)

2(3x-4)+10 (First, expand by using distributive property.)

2*3x=6x

2*4=8

6x-8

6x-8+10

-8+10 (Add and subtract.)

-8+10=2

6x+2

5(x+4)

5*x=5x

5*4=20

5x+20

6x+2=5x+20

6x+2-2=5x+20-2 (Subtract 2 from both sides.)

20-2 (Solve.)

20-2=18

6x=5x+18

6x-5x=5x+18-5x (Then, subtract 5x from both sides.)

18-5x (Solve.)

18-5x=18

x=18

So, the correct answer is x=18.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

step-by-step explanation: