Question 1

1. Given that $x$ = 6 and $y$ = $-4$ , evaluate $4x$$-$$7y$

Accepted Answer

52

Answer

-4

Answer

-1

Answer

21

Question 2

2. Given that $x$ = 6 and $y$ = $-4$ , evaluate $2x^2$$-$$y^3$

Accepted Answer

136

Answer

80

Answer

8

Question 3

3. Given that $x$ = 6 and $y$ = $-4$ , evaluate $3x$+$\frac{x}{y}$-$y^2$

Accepted Answer

$\frac12$

Question 4

4. Simplify $5x$$+$$22$$-$$6x$$-$$23$

Accepted Answer

$-x-1$

Answer

$-11x+1$

Answer

$11x-1$

Question 5

5. Simplify $x$$+$$3y$$+$$6x$$+$$4y$

Accepted Answer

$7x+7y$

Answer

$14x$

Answer

$-5x+7$

Answer

$5x-y$

Question 6

6. Simplify $$6x$$-$$20y$$+$$7z$$-$$8x$$+$25y-11z$

Accepted Answer

$-2x+5y-4z$

Answer

$-2x-5y-18z$

Answer

$2x-45y-4z$

Question 7

7.  Given that $a=3, b = 4, c = 6$, evaluate $ab^2 - ac$

Accepted Answer

30

Answer

120

Answer

126

Answer

27

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