Solve the system of equations by substitution.

-5x + y = 3

7.5x - 1.5y = 3

Jessica is a custodian at oracle arena. she waxes 20 m2 of the floor in 3/5 of an hour. jessica waxes the floor at a constant rate. at this rate how many sqaures meters can she wax per hour

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27