Answer:
34 students walk home after school.
Step-by-step explanation:
85 · 0.40 = 34
= 3x + 9x = 6x + 42
= 3x + 9x - 6x = 42 ( transposing +6x from LHS to RHS changes +6x to -6x )
= 12x - 6x = 42
= 6x = 42
= x = 42 ÷ 6 ( transposing ×6 from LHS to RHS changes ×6 to ÷6 )
= x = 7
Let us check whether we have found out the correct value of x or not by placing 7 in the place of x :
= ( 3 × 7 ) + ( 9 × 7 ) = 6 × 7 + 42
= 21 + 63 = 42 + 42
= 84 = 84
= LHS = RHS
Hence proved we have derived the correct value of x .
Therefore , the value of x = 7 .
Answer:
6
Step-by-step explanation:
Count the points, it's hard to explain through the internet
Answer:
see below
Step-by-step explanation:
2/m=24
Multiply each side by m
2/m*m =24*m
2 = 24m
Then divide each side by 24
2/24 = 24m/24
1/12 =m
Answer:
Step-by-step explanation:
The solution to the equation includes both the positive and negative portions of the solution.
x = 12 , 6