Answer:
x=3
Step-by-step explanation:
since they give you y this is a very simple problem
simply replace y with -3 and get
3x+(-3)=6
adding a negative number is the same as subtracting a positive number
3x-3=6
add 3 on both sides
3x=9
divide by 3 on both sides
x=3
Answer:
c
Step-by-step explanation:
1 1/2 cups x 2 bread = 12
12 cups x 3 for 1/3 per recipe =36
45 miles per hour is 3/4 mile per minute. Divide 4.8 by 0.75.
Answer:
70x³ - 73x² - 155x + 168
Step-by-step explanation:
Given
(5x - 7)(2x + 3)(7x - 8) ← expand the first pair of factors using FOIL
= (10x² + x - 21)(7x - 8)
Each term in the second factor is multiplied by each term in the first factor, that is
10x² (7x - 8) + x(7x - 8) - 21(7x - 8) ← distribute the 3 parenthesis
= 70x³ - 80x² + 7x² - 8x - 147x + 168 ← collect like terms
= 70x³ - 73x² - 155x + 168
