Answer:
x =5
Step-by-step explanation:
2(5x – 2) – 2x– 2 = 34
Distribute
10x-4-2x-2 = 34
Combine like terms
8x -6 = 34
Add 6 to each side
8x-6+6 = 34+6
8x = 40
Divide by 8
8x/8 = 40/8
x =5
I used synthetic division on the first one cuz I could and got that D is the answer for that one (#3); the next one I used long division and got C. Learn how to do this because it's a method of factoring and factoring is everywhere...it's just as important as being able to solve equations.
Answer:
the answer for #2 is -7
the answer for #3 is 11 or D
number 4 is 5 or C
Step-by-step explanation:
Answer:
t = 7
Step-by-step explanation:
5(2t - 3) – 7.5t = 0.5(12 – t)
5*2t - 3*5 - 7.5t = 12*0.5 - t *0.5
10t - 15 - 7.5t = 6 - 0.5t {Now, combine like terms}
10t - 7.5t - 15 = 6 - 0.5t
2.5t -15 = 6 - 0.5t {Add 15 to both sides}
2.5t = 6 - 0.5t + 15
2.5t = 21 - 0.5t { Add 0.5t to both sides}
2.5t + 0.5t = 21
3t = 21 {Divide both sides by 3}
t = 21/3
t = 7
Answer:
Step-by-step explanation:
Ix-4I+3=3
subtracting 3 from both sides (*as per general practice in equations unknown are on one side and constants on the other side or simply taking 3 to other side of the equation)
Ix-4I+3-3=3-3
Ix-4I=0
x-4=0
x-4+4=0=4
x=4
checking:
I4-4I+3=3
I0I+3=3
3=3
