Answer:
x = -10
Step-by-step explanation
5x+7(-3x-14)=162
First, 5x -21x - 98 = 162
Then, combine like-terms, -26x - 98 = 162
After that, add 98 to 162, and you'll end up with 260.
Finally, you'll wanna divide the -26x to the 162.
You'll end up with x = -10
Answer:
y= 3x+8
Step-by-step explanation:
y=3x+8
it's a word problem, there is no explanation for the beginning.
The value of k should equal to 4/3. You can multiply k on each side to get 4=3k and divide by 3 to get 4/3=k. Another approach is to reciprocate the RHS and LHS of the equation to get k/4=1/3, and then multiply by 4 on each side to get k=4/3.
Answer:
7
Step-by-step explanation:
Using Pythagoras' identity on the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
let x be the other leg, then
x² + 4² = ( )²
x² + 16 = 65 ( subtract 16 from both sides )
x² = 49 ( take the square root of both sides )
x = = 7
That is the other leg is 7 units