Answer:
Step-by-step explanation:
So since triangle jkl and wyz are similar angles j and w must equal each other, angles k and y must equal each other, and angles l and z are equal. So to find x just set 4x-13 equal to 71
4x-13=71
add 13 to both sides to cancel the -13 from the left
4x=84
and divide both sides by 4 to cancel the 4 on the left
x=21
Answer:
a) 
b) -14
c) -3
d) -96
Step-by-step explanation:
a) The parenthesis indicate multiplication.
b) Minus and plus gives subtraction, and the sign you put behind the number is the sign of the largest number you have (in this case it's 21 since we ignore the -)
c) They already have common denominators, all that's left is to do 
d) The parenthesis indicate multiplication.
Good luck!
Answer:
x = -2
Step-by-step explanation:
please mark brainliest
X2+4x−5<span>5<span>x2</span>−8x+3</span>×<span><span>20x−12</span><span><span>x2</span>−6x−55</span></span>
start by doing some factoring
<span><span><span>(x+5)(x−1)</span><span>(x−1)(5x−3)</span></span>×<span><span>4(5x−3)</span><span>(x−11)(x+5)</span></span></span>
cancel common factors and then see whats left...
So you cancel (x+5) and 4(5x-3)?
