How do you evaluate the expression 4x + 2y + 7x + 3 if x= 3 y= 4? Algebra Expressions, Equations, and Functions Expressions with One or More Variables 1 Answer Konstantinos Michailidis Sep 12, 2015 We just substitute the values of x,y hence #4*3+2*4+7*3+3=44# Answer link Related questions What is an example of an expression with one or more variables? How do you write expressions with one or more variables? How do you evaluate expressions when you have more than one variables? How do you evaluate the expression #3a+2b# for #a=1# and #b=-2#? How do you find the area of a triangle whose base is 2 inches and height is 4.5 inches? How do you find the volume of a sphere whose radius is 2? How do you evaluate the expression #2(x-y)# for #x=1# and #y=-2#? How do you evaluate #x^2+2x-1# when #x=2#? What is the value of #(3x+8y)/(x-2y)# if #x/(2y)=2#? How do you simplify #6-4t-4#? See all questions in Expressions with One or More Variables Impact of this question 2368 views around the world You can reuse this answer Creative Commons License