Let's solve your equation step-by-step.
7(4−a)=3(a−4)
Step 1: Simplify both sides of the equation.
7(4−a)=3(a−4)
Simplify:
−7a+28=3a−12
Step 2: Subtract 3a from both sides.
−7a+28−3a=3a−12−3a
−10a+28=−12
Step 3: Subtract 28 from both sides.
−10a+28−28=−12−28
−10a=−40
Step 4: Divide both sides by -10.
−10a/−10=−40/−10
a=4
Answer:
a=4