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professor190 [17]
3 years ago
7

Julie has three boxes of pens. The diagram shows expressions for the number of pens in each box. Look at these equations.

Mathematics
2 answers:
vovangra [49]3 years ago
4 0

Answer:

a = c + 16

Step-by-step explanation:

a = b + 12

b = c + 4

Solve for b in the first equation.

a = b + 12

a - 12 = b

Put b as a - 12 in the second equation and solve for a.

a - 12 = c + 4

a = c + 4 + 12

a = c + 16

stepladder [879]3 years ago
3 0

Answer:

<h2>a=c+16</h2>

here,

a=b+12

b=a-12----> equation (i)

b= c+4

putting the value of b from the equation (I)

a-12=c+4

a=c+4+12

a=c+16

hope this helps...

Good luck on your assignment...

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