Understanding
1. Solve the following equations and verify the answers:
b. Y + 6 = 34
a. 9x - 7 = 20
2
+6= 34
e. 28 +10p = 72
f. 1.5 =
0.2
Answers
Answered by
23
Required Answer:–
a. y + 6 = 34
⇛ y = 34 – 6
⇛ y = 28
Let's verify !
LHS :
y + 6
= 28 + 6
= 34
RHS : 34
LHS = RHS = 34
Hence, verified.
____________________
b. 9x – 7 = 20
⇛ 9x = 20 + 7
⇛ 9x = 27
⇛ x = 27/9
⇛ x = 3
Let's verify!
LHS :
9x – 7
= 9(3) – 7
= 27 – 7
= 20
RHS : 20
LHS = RHS = 20
Hence, verified.
______________________
c. 28 + 10p = 72
⇛ 10p = 72 – 28
⇛ p = -44/10
Let's verify!
LHS :
= 28 + 10(-44/10)
= 28 + (-440/10)
= 28 + (-44)
= 28 + 44
= 72
LHS = RHS = 72
Hence, verified.
Answered by
3
Answer:
a. 9x - 7 = 20
Solution,
⇛9x = 20 + 7
⇛9x = 27
⇛x = 27 ÷ 9
⇛x = 3
Verification,
⇛9x - 7 = 20
⇛9(3) - 7 = 20
⇛ 27 - 7 = 20
⇛20 = 20
LHS = RHS
Hence verified.
b. y + 6 = 34
Solution,
⇛y = 34 - 6
⇛y = 28
Verification,
⇛y + 6 = 34
⇛(28) + 6 = 34
⇛34 = 34
LHS = RHS
Hence verified.
c. 28 + 10p = 72
Solution,
⇛10p = 72 - 28
⇛10p = 44
⇛p = 44 ÷ 10
⇛p = 22/5
Verification,
⇛28 + 10p = 72
⇛28 +10(22/5) = 72
⇛28 + 44 = 72
⇛72 = 72
LHS = RHS
Hence verified.
Step-by-step explanation:
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