PLS HELP ASAP!! Which value of x makes 7 + 5(x - 3) = 22 a true statement? khan academy
2 answers:
Answer:
x=6
Step-by-step explanation:
7 + 5(x - 3) = 22
The first step is to distribute the 5
7+ 5x-5*3 =22
7+ 5x-15 =22
Combine like terms
5x-8 =22
Add 8 to each side
5x-8+8 =22+8
5x = 30
5x/5 = 30/5
x=6
Answer:
The Answer is c) 6
Step-by-step explanation:
Solve for x:
5 (x - 3) + 7 = 22
5 (x - 3) = 5 x - 15:
5 x - 15 + 7 = 22
Grouping like terms, 5 x - 15 + 7 = 5 x + (7 - 15):
5 x + (7 - 15) = 22
7 - 15 = -8:
5 x + -8 = 22
Add 8 to both sides:
5 x + (8 - 8) = 8 + 22
8 - 8 = 0:
5 x = 22 + 8
22 + 8 = 30:
5 x = 30
Divide both sides of 5 x = 30 by 5:
(5 x)/5 = 30/5
5/5 = 1:
x = 30/5
The gcd of 30 and 5 is 5, so 30/5 = (5×6)/(5×1) = 5/5×6 = 6:
Answer: x = 6
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The answer is -5/8 because -5 divided 8 equals -1 so that is greater than -0.68!
P = 2(L + W)
P = 68.4
L = 4W + 9.7
68.4 = 2(4W + 9.7 + W)
68.4 = 2(5W + 9.7)
68.4 = 10W + 19.4
68.4 - 19.4 = 10W
49 = 10W
49/10 = W
4.9 = W <==== the width is 4.9 cm
L = 4W + 9.7
L = 4(4.9) + 9.7
L = 19.6 + 9.7
L = 29.3 <=== the length is 29.3 cm
Rational because it has an ending and doesn't go on forever. Irrational numbers do.