MP Board Class 8th Maths Solutions Chapter 2 Linear Equations in One Variable Ex 2.5
MP Board Class 8th Maths Solutions Chapter 2 Linear Equations in One Variable Ex 2.5
MP Board Class 8th Maths Solutions Chapter 2 Linear Equations in One Variable Ex 2.5
Solve the following linear equations.
Question 1.
which is the required solution.
Question 2.
Question 4.
Question 5.
Solution:
⇒ t = 2, which is the required solution.
Question 6.
Simplify and solve the following linear equations.
Question 7.
3(t – 3) = 5(2t + 1)
Solution:
We have, 3(t – 3) = 5(2t + 1)
⇒ 31 – 9 = 101 + 5
⇒ – 9 – 5 = 101 – 31 ⇒ -14 = 71
⇒ 1 = – 2, which is the required solution.
Question 8.
15(y – 4) – 2(y – 9) + 5(y + 6) = 0
Solution:
We have,
15(y – 4) – 2(y – 9) + 5(y + 6) = 0
⇒ 15 y – 60 – 2y + 18 + 5y + 30 = 0
⇒ 18y – 12 = 0 ⇒ 18y = 12
Question 9.
3(5z – 7) – 2(9z -11) = 4(8z – 13) – 17
Solution:
We have,
3(5z – 7) – 2(9z -11) = 4(8z – 13) – 17
⇒ 15z – 21 – 18z + 22 = 32z – 52 – 17
⇒ 15z – 18z – 32z = 21 – 22 – 52 – 17 – 70
⇒ -35z = -70 ⇒ z = −70/−35
⇒ z = 2, which is the required solution.
Question 10.
0.25 (4f- 3) = 0.05(10f – 9)
Solution:
We have, 0.25(4f – 3) = 0.05(10f – 9)
⇒ f – 0.75 = 0.5f – 0.45
⇒ f = 0.6, which is the required solution.
MP Board Class 8th Maths Solutions
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