Answer:
X=-2
Step-by-step explanation:
Hope it helps
Answer:
(x, y) = (3, 26)
Step-by-step explanation:
I like to solve systems of equations like this by graphing. A graphing calculator easily shows the solution for both x and y.
(x, y) = (3, 26)
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As an alternative, here, the equations can be subtracted.
y = f(x)
y = g(x)
0 = f(x) - g(x) . . . . subtract the second equation from the first
0 = 11x -7 -(3x +17)
0 = 8x -24 . . . . simplify
0 = x -3 . . . . . . .divide by 8
3 = x
Now, we can substitute into either equation:
y = g(x) = 3(3) +17 = 26
The solution is (x, y) = (3, 26).
First, convert the decimals into improper fractions. The fractions are:
31/10 and 10261/1000. To divide the fractions, change division into multiplication after flipping the numerator and the denominator of the second fraction. This comes out to be 31/10 *(times) 1000/10261.
31*1000 is 31,000 and 10*10261 is 102,610. This equals the fraction: 31,000/102,610. Simplify this.
The value of the unknown number from the given expression is -6
<h3>Equations and expressions</h3>
Equations are expressions separated by an equal sign. According to the question, we are to interprete the given statement into an equation.
Given the statement below:
Three more than four times a number is equal to nine less than twice the number. This is expressed as:
4x + 3 = 2x - 9
where "x" is the number
Simplify
4x + 3 = 2x - 9
4x - 2x = -9 - 3
2x = -12
x = -12/2
x = -6
Hence the value of the unknown number from the given expression is -6
Learn more on equation and expression here: brainly.com/question/945593
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