Answer: look up triangle perimeter calculator
Step-by-step explanation:
X=29 and y=10
You would isolate one of the variables and then plug the expression into the other equation to find the value of one variable. Then you would plug this value into the other equation to determine the value of the remaining variable.
Step 1: Simplify both sides of the equation.
x−7=15+3x
x+−7=15+3x
x−7=3x+15
Step 2: Subtract 3x from both sides.
x−7−3x=3x+15−3x
−2x−7=15
Step 3: Add 7 to both sides.
−2x−7+7=15+7
−2x=22
Step 4: Divide both sides by -2.
−2x/−2=22/−2
x=−11
Answer:
<h2>
4</h2>
Option A is the right option.
solution,
∆ABC~∆EDC

putting the values,

Hope this helps..
Good luck on your assignment..
7x+7b = 7(x+b)
..............