If I was given the question exspand the brackets- 3(4y+x) would my answer be 7y+3x or 12y+3x
12y+3x Example : 3(4+11)12+3345
3(4y+x) what u do is multiply 3 time 4y that gives you 12x and then multiply 3 and x. then u get an answer 12y+3x. if there is a number outside of an bracket and a number inside you always multiply it. eg. 5(8x+9y) u'll get an answer of 40x+45y
12y+3x, you just multiply all the numbers in the brackets by the number outside them
