Answer:
x = -27
Step-by-step explanation:
Simplifying
5(x + 3) = 4(x + -3)
Reorder the terms:
5(3 + x) = 4(x + -3)
(3 * 5 + x * 5) = 4(x + -3)
(15 + 5x) = 4(x + -3)
Reorder the terms:
15 + 5x = 4(-3 + x)
15 + 5x = (-3 * 4 + x * 4)
15 + 5x = (-12 + 4x)
Solving
15 + 5x = -12 + 4x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4x' to each side of the equation.
15 + 5x + -4x = -12 + 4x + -4x
Combine like terms: 5x + -4x = 1x
15 + 1x = -12 + 4x + -4x
Combine like terms: 4x + -4x = 0
15 + 1x = -12 + 0
15 + 1x = -12
Add '-15' to each side of the equation.
15 + -15 + 1x = -12 + -15
Combine like terms: 15 + -15 = 0
0 + 1x = -12 + -15
1x = -12 + -15
Combine like terms: -12 + -15 = -27
1x = -27
Divide each side by '1'.
Width is x
length is 4x
answer b is correct the length is 4 times the width
Answer: 
Step-by-step explanation:
Distribute the negative sign.
Remove the other parentheses.
Combine like terms.
Answer:
Kate has changed the unit of measurement from centimeters to decimeters.
Step-by-step explanation:
Tony measures a drum stick and the length is measured to be 31 centimeters.
Now, Kate converts Tony's measurements and gets 3.1.
Now, we know that 10 centimeters are equivalent to 1 decimeter.
Hence, 1 centimeter will be equivalent to 0.1 decimeters.
And, 31 centimeters will be equivalent to 31 × 0.1 = 3.1 decimeters.
So, Kate has changed the unit of measurement from centimeters to decimeters. (Answer)
Answer:
I think its A.
Step-by-step explanation:
Parallel lines are lines that will never intersect
