-x - 7y = 18
4x + 7y = -30
The -7y and 7y cancel by addition.
Thus, 3x = -12
Divide both sides by 3
x = -4
Plug in -4 for x
Thus, -(-4) - 7y = 18
4 - 7y = 18
Subtract 4 to both sides; 4 - 4 - 7y = 18 - 4
Simplify, -7y = 14
Divide both sides by -7; -7y/-7 = 14 / -7
y = -2
The simplified form of the expression is -10x - 16
<h3>Factorizing expressions</h3>
Given the expression -2(5x + 8)
In order to factorize the expression, we will use the distributive property. Distribute -2 over 5x and 8 to have:
Step 1: Distribute -2 to 5x and 8
-2(5x + 8) =-2(5x) -2(8)
Simplify
-2(5x + 8) = -10x - 16
Hence the simplified form of the expression is -10x - 16
Learn more on factoring here: brainly.com/question/24734894
#SPJ1
Answer:
The ball traveled a total distance of 50 yards. or
The ball reached a maximum height of 70 yards.
Step-by-step explanation:
( _,_ ) The first blank is x and the second blank is y
Answer:
-2
Step-by-step explanation:
slope formula= (y2-y1)/(x2-x1)
(-1,-7) is (x1,y1)
(-2,-5) is (x2,y2)
Plug in numbers into slope equation
((-5)-(-7))/((-2)-(-1)) = 2/-1
Simplify
answer= -2
