After substituting, what is the first step when evaluating x + 3 x minus 4.2 when x = 5?
2 answers:
Answer:
Adding and subtracting :D
Step-by-step explanation:
okay so after plugging in your x you should have an equation that looks like this:
5+15-4.2
because (x=5)+(3*5)- 4.2
so then you start adding and subtracting:
(5+15)-4.2
20-4.2
15.8
Hope this helps :D
Answer:
Step-by-step explanation:
x + 3x - 4.2....when x = 5
so we sub
5 + 3(5) - 4.2
I would then multiply the 3 and the 5
5 + 15 - 4.2
then I would add
20 - 4.2
then subtract
15.8
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