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2 years ago

What's the property of equality of r- 20 = 30

Mathematics

2 answers:

Harman [31]2 years ago

7 0

Addition Property: For all real numbers x,y, and z , if x=y , then x+z=y+z .

eflexive Property: For all real numbers x , x=x . A number equals itself.

Subtraction Property: For all real numbers x,y, and z , if x=y , then x−z=y−z .

so its subtraction property

galina1969 [7]2 years ago

3 0

Answer:

r= 10

Step-by-step explanation:

30 - 20 = 10

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inna [77]

Answer:

Step 1 is wrong

Step-by-step explanation:

$\frac{1}{4} r+ 2 = 10$

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2 years ago

Dale currently has $599 in his savings account. Prior to getting paid, he had $230 in his savings account. How much was Dale’s p

nlexa [21]

Hi!

So really focus on the fact that he started at $230, and then added an amount of money which we'll call x, which made his total equal $599.

Take the parts I put in bold, and write the equation.
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Now we need to find x.

Whatever we do to the equation, we do it to both sides.
Our goal is to isolate x on one side.

Subtract 230 from both sides.
$230 - $230 + x = $599 - $230
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3 years ago

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IgorLugansk [536]

Answer:

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Step-by-step explanation:

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