3x - y = -4
3x - (-10) = -4 Substitute
3x + 10 = -4 Simplify
3x = -14 Separate numbers and variables
x = -14/3 Divide
2x - y = - 10
2x - (-10) = -10 Substitute
2x + 10 = -10 Simplify
2x = -20 Separate numbers and variables
x = -10 Divide
Answer:
6in...8in...and...10in
Two sides must use the pythagoras theorem to obtain the hypothenus
square root of 8 squared plus 6 squared so as to obtain a 10...hence making it a right angled triangle