Answer:
9
Step-by-step explanation:
3 times the sum of 4 and 2 = 3*(4+2)
= 3 * 6
= 18
18 - 9 = 9
Answer: The number of units sold when the manufactures home income equals the manufactures expenses
Step-by-step explanation:
Answer:
x = 4, y = -4
Step-by-step explanation:
9x + 3y = 24
3x + y = 8 divide both sides by 3
y = 8 - 3x subtract 3x from both sides
2y + 4x = 8
2(8 - 3x) + 4x = 8 replace y with 8 - 3x
16 - 6x + 4x = 8 distributive property
-6x + 4x = 8 - 16 subtract 16 from both sides
-2x = -8 divide both sides by -2
x = 4
y = 8 - 3x
y = 8 - 3(4) replace x with 4
y = 8 - 12
y = -4
Note:
PEMDAS
Solve the parentheses by multiplying 3:
18 + 3x = 24
Solve for x:
(Subtract 18 from both sides)
3x = 6
(Divide 3 on both sides)
x = 2
Answer:
|x| always equals a positive number so the number in between the absolute value can be a positive number or a negative number. So the answer is -2 or 2.
Step-by-step explanation:
