Answer:
3x + y = 22; y = 2x - 8
Step-by-step explanation:
Answer:
If they have the same variable you add or subtract them.
Step-by-step explanation:
Hence, the equation for the question (7) is
and equation for (8) is
. It can be solved by linear equation in one variable.
What is a linear equation in one variable?
A linear equation in one variable is written as
. Here,
and
are constants and
is a variable.
(7)
Consider n number of baseball cards does Mike have. Since this is 19 less then the cards Allan have hence, as you add 19 in n then it will give 84.
(8)
Consider the speed of Michelle is n. As, it is 3 times less than the speed of the Jamie hence, it you multiply 3 with n then it will give 12.

Hence, the equation for the question (7) is
and equation for (8) is
.
Learn more about linear equation in one variable from the following link:
brainly.com/question/85774
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Answer:
if you get the app photomath you are able to take a picture of the work it solves the equations and shows you the work
Step-by-step explanation:
this should help!!
Answer:
-4+30t
Step-by-step explanation:
2-6(-5t+1)
2+6*5t-6
2+30t-6
-4+30t