2(x+7)= -26 multiply by reciprocal first
2006-11-25 00:42:01 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
that means you multiply by the 2 first, 2 x X and 2 x 7
so then you have 2x + 14= - 26 move your 14 to the other side by adding its opposite to both sides
2x + 14 = - 26
2x +14 + - 14 = -26 + -14
2x = -40
then divide both sides by 2
2x/2 = -40/2
x= -20
2006-11-25 00:53:31 · answer #1 · answered by dlin333 7 · 0⤊ 0⤋
2(x + 7) = - 26
2x + 14 = - 26
2x + 14 - 14 = - 26 - 14
2x = - 40
2x/2 = - 40/2
x = - 20
The answer is x = - 20
Insert the x value into the equation
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Check
2(x + 7) = - 26
2(- 20 + 7 ) = - 26
2(- 13) = - 26
- 26 = - 26
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2006-11-25 01:45:38 · answer #2 · answered by SAMUEL D 7 · 0⤊ 0⤋
multiplying by 1/2
x+7=-13
adding -7
x=-20
2006-11-25 01:37:43 · answer #3 · answered by raj 7 · 0⤊ 0⤋
2(x+7) = -26
2x +14= -26
-14= -14
2x = #
2x/2x = #/2
answer
2006-11-25 00:54:38 · answer #4 · answered by apolloK♫ 4 · 0⤊ 1⤋
2(x+7)=-26
Multiplying both sides by 1/2,we get,
x+7=-13
or,x=-13-7=-20
2006-11-25 00:47:13 · answer #5 · answered by alpha 7 · 0⤊ 1⤋
2x+14=-26
2x=-26-14
2x=-40
x=-40/2
x=-20
2006-11-25 00:50:12 · answer #6 · answered by Dr. A 3 · 1⤊ 0⤋
1/0.7 is the reciprocal of 0.7 This is 1.42857, with those six digits repeating.
2016-05-23 01:04:55 · answer #7 · answered by Lois 4 · 0⤊ 0⤋