Rearrange the first equation so it matches the second equation and then use elimination method to solve. Or substitute 2x-5 for y into the second equation and solve. You will end up with one of the following:
--> x = some value and y = some value (ONE SOLUTION)
--> A True statement, such as 0 = 0, or 1=1, etc (INFINITELY MANY SOLN'S)
--> A False statement, such as 0 = 1, or 5 = 7, etc (NO SOLUTIONS)
Using substitution method:
-8x - 4(2x - 5) = -20
-8x - 8x + 20 = -20
-16x = -40
x = -40/16
Answer: One Solution
Answer:
-20x+26
Step-by-step explanation:
Answer:
y = 2x - 1
Step-by-step explanation:
So we can use the formula Y2 - Y1 / X2 - X1
So 7- 3 = 4 and 4 - 2 is 2 and 4/2 is 2 so the slope is 2.
If we keep using the slope we can tell that the y intercept is 1.
Answer: 75
Step-by-step explanation: