math
2006-12-21 05:29:40 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
5 X 3x = 15x
5 X 4y = 20y
5 X 10 = 50 =
15x+20y+50
you have to factor 5 into everything inside the () Multiplication lets you mulitiply a number by any other number even if they have a constant attached that is not the same. But addition or subtraction you can not do the same thing. So you can not add the terms inside after you factor the 5 into them so your final answer is
15x+20y+50
2006-12-21 05:38:05 · answer #1 · answered by csdraska 1 · 0⤊ 0⤋
First: use distribution > take 5 and multiply it by everything in the parenthesis:
= 5(3x) - 5(4y) + 5(10)
= 15x - 20y + 50
2006-12-21 13:31:22 · answer #2 · answered by ♪♥Annie♥♪ 6 · 3⤊ 0⤋
Distribute the 5 to all the terms inside the parentheses which would make it 15x-20y+50
2006-12-21 13:33:02 · answer #3 · answered by LaLaLolita 3 · 2⤊ 0⤋
Multiply the whole thing by 5:
15x-20y+50
2006-12-21 13:38:30 · answer #4 · answered by Anonymous · 1⤊ 0⤋
WHAT DO U NEED,
probable solution 15x-20y+10 that is multiply 5 by each member
2006-12-21 13:31:59 · answer #5 · answered by PaD 2 · 3⤊ 0⤋
distribute the 5: 15x-20y+50. you dont have an equals sign anywhere in the equation so that means you arent SOLVING the equation, you're just simplifying it as far as it goes. well thats as far as it goes, but if you are solving it, you would rewrite it into 2 equations, because you have 2 variables:
EQUATION 1: 15x-20y=-50----> 15x=20y-50-------> x=20/15y-50/15 (reduce the fractions)
EQUATION 2: you plug in the x into your original equation--> 15(20/15y-50/15)-20y=-50. solve for y, and then plug y into equation 1.
i know it seems hard its easier to explain in person...
2006-12-21 14:09:05 · answer #6 · answered by lil_poet_man 1 · 1⤊ 0⤋
15x - 20y + 50
2006-12-21 13:32:43 · answer #7 · answered by smart-crazy 4 · 2⤊ 0⤋
15x-20y+50
you multiply the number that is out of parenthesis with those that are in.
2006-12-21 16:07:55 · answer #8 · answered by catmaria1991 2 · 1⤊ 0⤋
what's the question?
2006-12-21 13:35:09 · answer #9 · answered by a Real Truthseeker 7 · 0⤊ 0⤋
hey! you HAVE TO SOLVE THIS YOURSELF.
2006-12-21 13:37:17 · answer #10 · answered by Anonymous · 0⤊ 0⤋