exam Maths Puzzle Numerical Ability

ok last one for the day. Thank you for your time.

type an integer or simplified fraction x=?

-8x-21=-23 2/3

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exam Other Question

can someone please help me with this!!

A triangle has sides 3x + 7, 4x - 9, and 5x + 6. Find the polynomial
that represents its perimeter.
1. Evaluate. 50 ÷ 5 - 80 ÷ 10

A) 3 B) 1 C) 4 D) 2


2. Evaluate. | -5 | - | 3 |

A) 2 B) 8 C) -2 D) -8

3. Add. 3 1/5+2 1/4

6.