Question

Substitute the value of y from the first equation into the second equation and simplify. y= 10-x 20x+26.25y=250

A)-6.25+ 262.5 = 250
B) 46.25x + 262.5 = 250
C) 19x + 262.5

Answer 1

To substitute the value of y from the first equation into the second equation, y = 10 - x, we can substitute this value into the second equation, 20x + 26.25(10 - x) = 250, and simplify to find the value of x.

Step-by-step explanation:

To substitute the value of y from the first equation into the second equation and simplify, we start by replacing y in the second equation with its value from the first equation. Given y = 10 - x, we can substitute this value into the second equation:

20x + 26.25(10 - x) = 250

Simplifying, we distribute the 26.25:

20x + 262.5 - 26.25x = 250

Combining like terms, we get 20x - 26.25x + 262.5 = 250:

-6.25x + 262.5 = 250

Finally, we isolate x by subtracting 262.5 from both sides:

-6.25x = -12.5

Dividing by -6.25, we find that x = 2:

x = 2