find the x and solve the following answer the all the question and step by step please
Answers
Answer:
value of x = 2
Step-by-step explanation:
2x + 7 = 11
2x = 11 - 7
2x = 4
x = 4/2
x = 2
Answer:
1. a. 2x+7 = 11
ans 2x = 11-7 [shifting 7 to RHS and sign also changes]
2x = 4
x = 4/2 [on dividing answer will be 2]
x = 2
d. y/7 + 1 = 3
ans y/7 = 3-1 [Shifting +1 to RHS and sign changes]
y/7 = 2
y = 7 mutliplied by 2
y = 14
2. a. 2x + 1 = x + 7
ans 2x - x = 7 - 1 [ Shifting x to LHS and 1 to RHS]
x = 6
d. 6p - 18 = 5p - 7
ans 6p - 5p = -7 + 18 [ Shifting 5p to LHS and -18 to RHS]
p = - 7 + 18 [ - plus the process will be subtract but sign will be + ]
p = 11
3. a. 5x + 8 - 2x = 1
ans 5x - 2x = 14 - 18 [Shifting 14 to RHS]
3x = -4
x = -4/3
d. 6 = 2(7 - c)
ans 6 = 14 - 2c [ solving the bracket]
6 - 14 = -2c
-8 = -2c
-8/-2 = c [divide it and note :- - sign will be cut off]
4 = c
4. a. 3x - 12 + 4x = 6x + 6
ans 3x - 12 + 4x - 6x = 6 [shifting 6x to LHS]
3x + 4x - 6x = 6 + 12
7x - 6x = 18
x = 18
c. 12 - 6x = 6(4 + 2x) + 6
ans 12 - 6x = 24 + 12x + 6 [solving the brackets]
-6x - 12x = 24 + 6 - 12
-18x = 30 - 12
-18x = 18
x = 18/-18
x = 1
e. 4(2x - 6) + 3(x - 3) = 0
ans 8x - 24 + 3x - 9 = 0 [solving the brackets]
8x + 3x - 24 - 9 = 0
11x - 33 = 0
11x = 0 - 33
x = -33/11
x = -3
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