Evaluate: (3y + 8y) – 5y - Mathematics

Evaluate:

(3y + 8y) – 5y

बेरीज

(3y + 8y) – 5y = 11y – 5y = 6y

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Concept of Substitution

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पाठ 20: Substitution (Including Use of Brackets as Grouping Symbols) - Exercise 20 (B)

पाठ 20 Substitution (Including Use of Brackets as Grouping Symbols)
Exercise 20 (B) | Q 1.6

Find the value of 2a + 4b + 5c, when a = 5, b = 10 and c = 20

If a = 3, b = 0, c = 2 and d = 1, find the value of 6a − 3b − 4c − 2d

If a = 3, b = 0, c = 2 and d = 1, find the value of a² + 2b² − 3c²

If a = 3, b = 0, c = 2 and d = 1, find the value of a² + b² − c² + d²

If x = 2, y = 5 and z = 4, find the value of the following:

`"xz"/"yz"`

Simplify:

3x + (8x − 5x) − (7x − x)

Simplify:

− (y − x) − (x + y − `overline(2"x"+"y")`)

Insert the bracket as indicated:

ab + 2bc − 3ac = 2bc − (...............)

Find the value of 3ab + 10bc – 2abc when a = 2, b = 5 and c = 8.

Simplify:

`12"x"^2-(7"x"-overline(3"x"^2+15))`