Insert the Bracket as Indicated: X − 2y = − (...................) - Mathematics

Insert the bracket as indicated:

x − 2y = − (...................)

Fill in the Blanks

x − 2y = − (2y − x)

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Chapter 20: Substitution (Including Use of Brackets as Grouping Symbols) - Exercise 20 (C)

Chapter 20 Substitution (Including Use of Brackets as Grouping Symbols)
Exercise 20 (C) | Q 2.1

Fill in the blank, when:
x = 3, y = 6, z = 18, a = 2, b = 8, c = 32 and d = 0.

a + b + x = ...................

Find the value of 4pq × 2r, when p = 5, q = 3 and r = 1/2

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

`(5"x"^4"y"^2"z"^2)/(2"x"^2)`

Simplify:

2 (3a − b) − 5 (a − 3b)

If x = 3, y = 2 and z = 1; find the value of x^y

If x = 3, y = 2 and z = 1; find the value of 2x – 3y + 4z + 5

If x = a² – bc, y = b² – ca, and z = c² – ab; find the value of ax + by + cz

Multiply and then evaluate:

(x² – y) and (xy – y²); when x = 1 and y = 2.

Evaluate x² + y when x = 2, y = 3:

Value of 10 - z² substituting z = 2: