Answer:
6
Step-by-step explanation:
ules in Solving Equations
Solving the equation means finding the value of the variable that makes the equation true. There are rules that you have to remember to solve equations correctly. Below are the rules:
Simplify each side of the equation by removing parentheses and combining similar terms.
Isolate the variable on one side of the equation using addition or subtraction.
Solve for the variable using multiplication or division.
If there are fractions, remove them by multiplying each side of the equation by the common denominator.
Solution:
Let us now solve the given equations above using the rules in solving equations.
1. 2x + 4 = 16
2x = 16 - 4
2x = 12
2x/2 = 12/2
x = 6
2. 68 = 3y - 4
68 + 4 = 3y
72 = 3y
72/3 = 3y/3
24 = y
3. m/4 = 17
(4) (m/4) = (17) (4)
m = 68
4. 3n/6 = 7
(6) (3n/6) = (7) (6)
3n = 42
3n/3 = 42/3
n = 14
5. 5y + 0 = 125
5y = 125 - 0
5y = 125
5y/5 = 125/5
y = 25
6. x - (-27) = 35 - 12
x + 27 = 23
x = 23 - 27
x = -4
7. 5x + (-55) = 20
5x = 20 + 55
5x = 75
5x/5 = 75/5
x = 15
8. 96 - 4x = -28
-4x = -28 - 96
-4x = -124
-4x/-4 = -124/-4
x = 31
9. -41 + 3x = -23 -18
-41 + 3x = -41
3x = -41 + 41
3x = 0
3x/3 = 0/3
x = 0
10. -45x -13 = 77 + 90
-45x = 77 + 90 + 13
-45x = 180
-45x/-45 = 180/-45
x = -4
To learn more examples of solving equations, visit the links:
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