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

,  

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

Subtract -7x from both sides to collect the x terms

Minus 22 from both sides to isolate 11x

Divide both sides by 11 to isolate x

Substitute x = -2 into y = -7x

So the solution is    and  

Hope this helps :)

3.how is solving radical equations different than solving linear equations?

step-by-step explanation:

a

step-by-step explanation: