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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Concept of Substitution

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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

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

z^x

Evaluate:

6m – (4m – m)

Simplify:

− m − n − (− m) − m

Simplify:

`"a"-(2"a"-overline(4"a"+3"a"))`

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

If x = 2, y = 3 and z = 4, find the value of 3x² – 4y² + 2z².

If x = 3, y = 2 and z = 1; find the value of y² – x² + 6z²

If P = − 12x² – 10xy + 5y², Q = 7x² + 6xy + 2y², and R = 5x² + 2xy + 4y²; find P + Q + R

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

Simplify:

3x – 8 (5x – 10)