Rearrange the equation so a is the independent variable.

3a-7= -4b+1

Please help! :)

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

df =

both have same length