terms.
7(4w-3)-25w=?
2006-11-29 06:18:48 · 4 answers · asked by Dave 1 in Science & Mathematics ➔ Mathematics
If I knew how to do it I wouldnt be asking for help, please someone explain.
2006-11-29 06:23:16 · update #1
7(4w - 3) - 25w = 0
28w - 21 - 25 = 0
3w - 21 = 0
3w - 21 + 21 = 0 + 21
3w = 21
3w/3 = 21/3
w = 7
The answer is w = 7
Insert the w value into the equation
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Check
7(4w- 3) - 25w = 0
7[4(7) - 3] - 25(7) = 0
7[28- 3] - 175 = 0
7[25] - 175 = 0
175 - 175 = 0
0 = 0
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2006-11-29 06:51:11 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
The distributive property is when you take what is outside the parentheses and multiply it by everything inside the parentheses. 7(4w - 3) - 25w 7(4w) - 7(3) - 25w 28w - 21 - 25 w 3w - 21 Hope that helps!
2016-05-23 02:30:22 · answer #2 · answered by ? 4 · 0⤊ 0⤋
first the parenthesis
7(4w-3)-25w=?
multiply 7 by both terms in the parenthesis
7*4w= 28w
7*3= 21
so now we have
28w-21-25w=?
so combine the like terms (the ones with w)
28w-25w= 3w
so now we have
3w-21=? (simplified)
2006-11-29 06:27:13 · answer #3 · answered by mle 2 · 0⤊ 0⤋
Ok, go ahead
Do It!
2006-11-29 06:20:34 · answer #4 · answered by modulo_function 7 · 0⤊ 0⤋