1 6x+7=25;3
2 22-5c=8;3
3 b\4-7=1;36
4 7a+4_>20;2.7 ps. the arrow is suppose to be on top of the line.
5 4y-3.12;4
6 m\3+14<33;9
I NEED THE ANSWERS PLEASE CAN ANYBODY HELP ME FAST .
What does ";" mean?
sorry for all the dots they werent nessary but that's how it shows in my math book
If all you need is the answer, the answers are given behind the ;
e.g.
6x + 7 = 25
6x = 18
x = 3
Sure, I can help you with these algebraic equations. Let's solve them one by one:
1. 6x + 7 = 25; solve for x
To solve for x, you want to isolate x on one side of the equation.
Subtract 7 from both sides:
6x + 7 - 7 = 25 - 7
6x = 18
Now, to get x by itself, divide both sides by 6:
6x / 6 = 18 / 6
x = 3
So, the solution to the equation is x = 3.
2. 22 - 5c = 8; solve for c
To solve for c, follow the same steps:
Subtract 22 from both sides:
22 - 5c - 22 = 8 - 22
-5c = -14
Divide both sides by -5:
-5c / -5 = -14 / -5
c = 2.8
So, the solution to the equation is c = 2.8.
3. b/4 - 7 = 1; solve for b
To solve for b, again follow the same steps:
Add 7 to both sides:
b/4 - 7 + 7 = 1 + 7
b/4 = 8
Multiply both sides by 4:
(4)(b/4) = 8(4)
b = 32
The solution to the equation is b = 32.
4. 7a + 4 ≥ 20; solve for a
To solve for a, the process is slightly different for an inequality:
Subtract 4 from both sides:
7a + 4 - 4 ≥ 20 - 4
7a ≥ 16
Divide both sides by 7:
(1/7)(7a) ≥ (1/7)(16)
a ≥ 2.2857 (approximately)
The solution to the inequality is a ≥ 2.2857.
5. 4y - 3.12 = 4; solve for y
To solve for y, follow the same steps:
Add 3.12 to both sides:
4y - 3.12 + 3.12 = 4 + 3.12
4y = 7.12
Divide both sides by 4:
4y / 4 = 7.12 / 4
y = 1.78
So, the solution to the equation is y = 1.78.
6. m/3 + 14 < 33; solve for m
To solve for m in an inequality, use similar steps:
Subtract 14 from both sides:
m/3 + 14 - 14 < 33 - 14
m/3 < 19
Multiply both sides by 3:
(3)(m/3) < (3)(19)
m < 57
The solution to the inequality is m < 57.
I hope this helps!