All changes saved An unknown number bis 10 more than an unknown number k. The number b is also k less than 8. The equations to find k and b are shown below: b = k + 10 b = -K + 8 Which is a correct step to find k and b? (1 point) Write the points where the graphs of the equations intersect the x-axis. Write the points where the graphs of the equations intersect the y-axis. Add the equations to eliminate k. O Multiply the equations to eliminate b.