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skelet666 [1.2K]
4 years ago
12

Evaluate 4x-7 when x=5

Mathematics
2 answers:
Anna007 [38]4 years ago
4 0
The answer is 13.

You can evaluate this by substituting x for 5 in the expression.

4x-7
4(5)-7
20-7
13
xz_007 [3.2K]4 years ago
4 0
Since x=5, we will make the problem into 4(5)-7. Following the order of operations, we need to multiply first. 4*5=20. Then we have 20-7, which is equal to 13. I hope this helps you!

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For the line represented by y = 5 x − 7, the slope is ________ and the
Dmitry_Shevchenko [17]

Answer:

For the line represented by y = 5 x − 7, the slope is 5 and the

y-intercept is -7.

Step-by-step explanation:

The equation is in <em>Slope-intercept form</em>.

y=mx+b

The letter 'm' represents the slope.

The letter 'b' represents the y-intercept.

In the equation y=5x-7:

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Step-by-step explanation:

The root of an equation is when x=0.

We need to rewrite this as 3x²-4x+10=0.

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6 0
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sergejj [24]

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<em>3x-(2x+13)+8=0</em>

We get rid of parentheses:

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We add all the numbers together, and all the variables:

<em>x-5=0</em>

We move all terms containing x to the left, all other terms to the right:

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5 0
3 years ago
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bija089 [108]
Plug 1 in for x to get 7y=3(1)-7

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7 0
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