3 years ago

What is the value of x? (X+40)

Mathematics

2 answers:

ozzi3 years ago

7 0

-40

Step-by-step explanation:

at the moment your equation is x+40=0

you move the forty to the other side by subtraction and you get x= -40

Naya [18.7K]3 years ago

7 0

Answer:

x=-40

Step-by-step explanation:

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Vlada [557]

Answer:

y = x - 5

Step-by-step explanation:

$\rm Solve \: for \: y: \\ \rm \longrightarrow x - y= 5 \\ \\ \rm Subtract \: x \: from \: both \: sides: \\ \rm \longrightarrow x - y - x = 5 - x \\ \\ \rm \longrightarrow -y = 5 - x \\ \\ \rm Multiply \: both \: sides \: by \: -1: \\ \rm \longrightarrow - y \times ( - 1) = (5 - x) \times ( - 1) \\ \\ \rm \longrightarrow y = x - 5$