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3 years ago

HELP!!! solve the following system:y = x + 33x + y = 19

Mathematics

1 answer:

MariettaO [177]3 years ago

8 0

3x + (x+3) = 19
4x + 3 = 19
4x = 16
x = 4

y= x+3
y= 4+3
y= 7

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Write and solve the equations. A number y is five less than thirteen.

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We can follow the following steps to make an equation and solve it.

Step 1:

five less than 13 means we have to subtract 5 from 13

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A number y is five less than thirteen.

Now in algebraic expressions, "is" stands for "="

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Step-by-step explanation:

As the statement is ‘‘if and only if’’ we need to prove two implications

$f : X \rightarrow Y$ is surjective implies there exists a function $h : Y \rightarrow X$ such that $f\circ h = 1_Y$ .
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