I need to find the solution of these 4 questions using substitution I'm super stuck
1 answer:
I'll help with the first one. Start by getting x by itself. To do that, take the first equation and subtract y from both sides.
x = 3 - y
Then take the second equation and substitute (3 - y) in for any x value. simplify to get the value of y. then plug in y to the first equation to get the value of x.
(1,2) is the first answer. Follow the same steps for the rest.
x = 3 - y
Then take the second equation and substitute (3 - y) in for any x value. simplify to get the value of y. then plug in y to the first equation to get the value of x.
(1,2) is the first answer. Follow the same steps for the rest.
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Step-by-step explanation:
In order to find the number of solutions, we have to expand both sides out first.
First, expand 3(x-2), which will obtain 3x-6.
Next, expand (1/2)(6x-2), which gives 3x - 1.
The result at this point should be as shown below:
Now, we would shift all x terms to the left and all number terms to the right.
After simplifying, the final equation would be:
This is a linear equation and it has one solution.