I recommend u use the app called photomath. It works a lot.
-2(4x-1)=5+7
(4x-1)=12/-2
4x=-6+1
x=-5/4
Answer:
7
Step-by-step explanation:
the square root of 49 is 7 since 7 x 7 = 49
Answer:
Step-by-step explanation:
7.50x + 6y ≤ 92. AND. x + y ≥ 20
Answer: y = 1/2 or y = -1/2
Step-by-step explanation:
First move the 1 to the side with the 0
-4y^2 = -1 // -1 because when you move a number to the other side of the equation you have to multiply -1
Then divide by -4 on each side
y^2 = 1/4
square root each side
|y| = 1/2 // sq rt y^2 becomes an absolute value because when you square root a square it automatically becomes an absolute value
so the answer would be y = 1/2 or -1/2
to check just put it into the equation as y. Both work.
