Answer:
x=3 and y=−4
Step-by-step explanation:
Solve4x+y=8for y:
4x+y=8
4x+y+−4x=8+−4x(Add -4x to both sides)
y=−4x+8
Step: Substitute−4x+8 for y in 5x+2y=7:
5x+2y=7
5x+2(−4x+8)=7
−3x+16=7(Simplify both sides of the equation)
−3x+16+−16=7+−16(Add -16 to both sides)
−3x=−9
-3x/-3=-9/-3
(Divide both sides by -3)
Step 2: Substitute 3 for x in y=−4x+8:
y=−4x+8
y=(−4)(3)+8
y=−4(Simplify both sides of the equation)
<span>The fundamental idea of
multiplying is <em>repeated addition</em>. For example:
By taking the number five and add it itself three times we have:
In contrast, let's take the number
three and add it itself five times, so:
.
Both 3 and 5 are called
factors that are numbers. We can multiply them to get another number. Multiplying can also be expressed like this:
So you have the factors:
You can even write any multiplication as the
product of factors. On the other hands, factoring shows that you can write any nth-degree polynomial as the product of linear factors, so:
To conclude the <em>relationship</em> between both concepts is the
product of factors.</span>
Answer:
(6,-3)
Step-by-step explanation:
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