Answer:
y=x+5
Step-by-step explanation:
a = −bx+7x−4 over x
solve for a:
7+ax−5x=3+2x−bx
add 5x to both sides:
ax−5x+7+5x=−bx+2x+3+5x
ax+7=−bx+7x+3
add -7 to both sides:
ax+7+−7=−bx+7x+3+−7
−bx+7x−4
lastly divide both sides by x.
3
Hope this helps!
24 times i think.......
