solution how to solve equations for x and y jennarocca form x mx b x m x b choose one of the original equations and solve for y since the equations are equivalent it does not matter which one algebra 1 lesson 1 linear equations equations with x and y simplifying math you 7 1 linear and nar systems of equations 1 solving quadratics able demo here the x and y intercepts are actually the same point the origin we will need at least one more point so that we can graph the line solution solving three equation solution comparison one variable equations two variable equations x y 5 neither of these equations had a variable with a coefficient of one in this case solving by substitution is not the best method example 1c solve the system by substitution 2x y graphing lines using intercepts solve the diffeial equation square x y dy dx x square y exp 1 cube x find the x and y intercepts of 2x 5y 6 ex 3 3 1 solve by substitution method i x y example solve by substitution y 4x 8 x y example 15 show x y dy dx x 2y warm up solve each equation for x 1 y x 3 solve the diffeial equation cube x dy dx cube y square y sqrt square y square x 8 solve for x and y 3x 9 x 3 3y 2 7 y 3 3 solving how to use and find x y intercepts in algebra ex 4 6 11 solve using matrix method 2x y z 1 the general solution of the diffeial equation dy ex y dx is a ex e y c b ex ey c c e x ey c d e x e y c systems of equations with substitution 2y x 7 x y 4 khan academy solutions to 2 variable equations substitution old khan academy 3x y 52 y 2x 10 3x 3x systems of equations with elimination x 2y 6 4x 2y 14 khan academy the system of equations is x 0 5y 7 7 solve equation 1 for systems of equations with substitution 2y x 7 x y 4 khan academy solve 2 3x 1 x 3 7x 1 2 3 x 1 x 3 7 x 1 here we selected values for x to be 2 4 and 6 you could have chosen any values you wanted finally substitute this into the original substitution to find x how to find y intercept with an equation in point slope form math wonderhowto image titled solve multivariable linear equations in algebra step 4 solve the diffeial equation square x y cube x dy dx y raised to power 4 cosx write an equation of the line in slope intercept form that p through the points