move x to the other side.
2y = -2x + 14
divide by 2.
y = -x + 7
let me know if you need more help.
Answer:
A.
When Lucia solved the second equation for x, she subtracted 2y from both sides.
Step-by-step explanation:
Lucia made a mistake when she rewrote the formula
To rewrite the formula to x is a function of y. we have to add 2y to both sides of the formula. Instead of adding 2y, Lucia subtracted 2y from the right side.
Instead of what she did, x should be written the following way
