How do I slove this x+7=3

Solve for x 0.5x+78.2=287

20*+12>14*+30 A. * <3 B.*<7 C.*>7 D.*>3

2 fractions have a common denominator of 8 what could the two fractions be?

At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 100 meters and a diameter of 50 meters. It takes the wheel seven minutes to make one revolution.

35%Daisy is cooking pasta. The recipe says she needs 480 grams of pasta for 4 people. How many kilograms will she need for 14

A chess player won 2 games out of 20 what is the ratio to games lost to games won

How many solutions are there to the equation below? 220 = 2x-12x A) 1 B) 2 C) infinitely many

The simple interest x on an investment would take p dollars at an interest rate r or t years is given by x=prt. Find the time it would take to earn $900 in interest on an investment of $21,000 at a rate of 4.6%

For which equation would x = 12 be a solution? x + 4 = 12 48 : x = 12 12 - x = 4 12x = 144

The rectangle below has an area of x^2-9 square meters and a width of x-3 meters. What expression represents the length of the rectangle?