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abby0801
abby0801 abby0801
  • 01-01-2017
  • Mathematics
Answered

Find the value of x RT=4x+10 SW= 5x-20

Find the value of x RT=4x+10 SW= 5x-20 class=

Verified Answer :

Kythex
Kythex Kythex
  • 02-01-2017

Well, as you can see from the rectangle RT and SW should have equal lengths. So to find the value of x, we need to do.....

4x + 10 = 5x - 20
-x + 10 = -20              (Subtraction property of equality)
-x = -30                      (Subtraction property of equality)
x = 30                        (Division property of equality)

To check our work:

4(30)+10 = 130
5(30)-20 = 130

So, the value of x is 30!


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