Select steps that could be used to solve the equation 1 + 3x = -x + 4.

add x, subtract 1, divide by 4
add x, subtract 4, divide by 4
subtract 3x, subtract 4, divide by 4
subtract 3x, subtract 4, divide by -4
subtract 1, add x, divide by 4

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103