6x +12 - 3x = 70
6x-3x+12= 70
3x+12= 70
move +12 to the other side
sign changes from +12 to -12
3x+12-12=70-12
3x= 58
divide by 3 for both sides
3x/3=58/3
x=58/3 or x=19 1/3
Answer: x=58/3 or x=19 1/3
An equation that means 8 more than x is 14 would be x + 8 = 14. I hope this helps!
To simplify 4/(2+7i), we multiply it by a fraction equal to one that removes the i value in the denominator. The best value to do this is the complex conjugate divided by itself, so we have 4(2-7i)/((2+7i)(2-7i)). Simplifying, we have (8-28i)/(4-(-49))=(8-28i)/53, which is a completely simplified fraction since 8 and 53 are relatively prime (or coprime), and there are no radicals in the denominator.
Answer:
Step-by-step explanation:
Plan B.
