Question

Evaluate and simplify the expression

when x = 5 and z = 3.
2x - 3(x-z)
z - 1
=
[?]


it’s not written right up there but in the pic it’s right

Answer 1

Explanation:

Use PEMDAS order

Parenthesis

Exponents

Mult/Div whichever is first

Add/Sub whichever is first

Special Because the division is there Do above the line and below first, dividing will be last

Substitute

`(2(5) - 3(5-3))/(3-1)`

`(2(5)-3(2))/(2)`

`(10-6)/(2)`

`(4)/(2)`

2