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stealth61 [152]
2 years ago
9

Solve the system by substitution. y = 4x + 22 y = -7x

Mathematics
2 answers:
Lesechka [4]2 years ago
7 0

Answer:

x=-2

y=14

Step-by-step explanation:

-7x=4x+22

-11x=22

x=-2

y=-7(-2)

y=14

denis-greek [22]2 years ago
5 0

Answer:

y=14 ,  x=-2

Step-by-step explanation:

If two items or expressions are equal to the same subject then they are equal to each other,

y = 4x + 22 and y = -7x

Using the statement at the top

4x + 22 = -7x

<em>Subtract -7x from both sides to collect the x terms</em>

11x+22=0

<em>Minus 22 from both sides to isolate 11x</em>

<em />11x=-22<em />

<em>Divide both sides by 11 to isolate x</em>

<em />x = -2<em />

<h3>Now that we have the value of x we can substitute it into any of the equations to find the value of y</h3>

<em>Substitute x = -2 into y = -7x</em>

<em />y = 14<em />

So the solution is  y=14  and  x=-2

Hope this helps :)

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