Answer:
y = -6
Step-by-step explanation:
-28 = 4y - 4
4y - 4 = -28
4y - 4 (+ 4) = -28 (+ 4)
4y - 4 + 4 = -28 + 4
4y = -24
4y/4 = -24/4
y = -6
Answer:
x≥3
Step-by-step explanation:
7x-28≥-7
Add 28 to each side
7x-28+28≥-7+28
7x≥21
Divide by 7
7x/7≥21/7
x≥3
I thought of it as Fahrenheittttttttt and converted it would be to subtract 30 if you do it in your head but it would be a rough estimate
You answer this by isolating the variable. This means you work on the side where the variable is and do reverse operations to undo what was done in reverse "pemdas" order.
Start by translating and writing an equation:
Let x be the number
so:
12-1/4 x = 22
now subtract 12 from both sides. (because 12-12=0)
12-12-1/4 x =22-12 (now simplify)
-1/4 x = 10
next you want 1 x, not -1/4 x.... so to get to 1 you multiply both sides by the reciprocal of -1/4 which is -4/1
-1/4 * -4/1 x = 10 * -4/1 (multiply and simplify)
x = -40
Answer:
divide both sides by 7
Step-by-step explanation:
you want to isolate d by its self
