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2 years ago

Is 61 a Solution?

Mathematics

2 answers:

lutik1710 [3]2 years ago

8 0

Answer:

Step-by-step explanation:

x +23 = 82
x = 82 - 23
x = 59

Since 59 ≠ 61, the answer is NO

Tomtit [17]2 years ago

5 0

Answer: 61 is NOT a solution. The first thing I did was replace the variable (x) with 61, afterwards I rewrote the equation as 61+ 23= 82, if you add 61 by 23 you'll get 84! 84>82, which proves 61 is not a solution!

Step-by-step explanation:

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A race car travels 100 feet in 5 seconds, at this rate of speed, how many feet will the race car travel in a minute

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2 years ago

-8z+(4.5)+3.5z+7y-1.5

bogdanovich [222]

Answer:

$\boxed{\sf{7y+3-4.5z}}$

Step-by-step explanation:

In order to combine like terms, you have to isolate x and y from one side of the equation.

$\sf{-8z+\left(4.5\right)+3.5z+7y-1.5}$

First, thing you do is remove parentheses.

$\Longrightarrow: \sf{-8z+4.5+3.5z+7y-1.5}$

Solve.

Then, you combine like terms.

$\Longrightarrow:\sf{-8z+3.5z+7y+4.5-1.5}$

Add/subtract the numbers from left to right.

-8z+3.5z=-4.5z

Rewrite the problem down.

$\Longrightarrow: \sf{-4.5z+7y+4.5-1.5}$

Solve.

4.5-1.5=3

$\Longrightarrow: \boxed{\sf{7y+3-4.5z}}$

Therefore, the correct answer is 7y+3-4.5z.

I hope this helps, let me know if you have any questions.

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