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a=5
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∙ 11y ago
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2a plus 5 a equals 3?
2a+5a=3 7a=3 a=3/7 or .4286
What is the answer to 2a equals 7?
3.5
-8a plus 6a plus 7 equals 1?
-8a + 6a + 7 = 1 -2a = 1 - 7 -2a = -6 a = 6/2 a = 3 Check: -8(3) + 6(3) + 7 = 1 -24 + 18 + 7 = 1 1 = 1
What is the answer for the formula x equals 2a b plus 7 find if a equals 3 and b equals 5?
x=2ab+7 x= 2(3)(5) +7 x=30+7 x=37
Is 2a plus 7 a polynomial a monomial binomial or trinomial?
2a+7 is a binomial, because it has two terms (2a and 7).
2a plus 5 a equals 3?
2a+5a=3 7a=3 a=3/7 or .4286
How do you solve 2a-7 equals -9?
2a - 7 = -9 2a - 7 + 7 = -9 + 7 2a = -9 +7 2a = -2 2a/2 = -2/2 a = -2/2 a= -1
7a plus 4 equals 5a plus 7?
7a + 4 = 5a + 7 7a = 5a + 3 2a = 3 a = 3/2
What is the solution of a 5a-5 equals 7 plus 2a?
5a - 5 = 7 + 2a ( subtract 2a from both sides) 3a - 5 = 7 (add 5 to both sides) 3a = 12 ( divide both sides by 3) a = 4
What is the answer to 2a equals 7?
3.5
-8a plus 6a plus 7 equals 1?
-8a + 6a + 7 = 1 -2a = 1 - 7 -2a = -6 a = 6/2 a = 3 Check: -8(3) + 6(3) + 7 = 1 -24 + 18 + 7 = 1 1 = 1
What is the answer for the formula x equals 2a b plus 7 find if a equals 3 and b equals 5?
x=2ab+7 x= 2(3)(5) +7 x=30+7 x=37
What is the answer to a equals -7 -a?
a = -7 - a So 2a = -7 and a = -3.5
Is 2a plus 7 a polynomial a monomial binomial or trinomial?
2a+7 is a binomial, because it has two terms (2a and 7).
What is the answer to -2a-3a equals 7-4a?
The value of a is -7
How do you factorise 14a plus 21?
It is: 7(2a+3) when factorised
How do you solve b equals 2a plus 11 and a plus b equals 5 by substitution?
b = 2a + 11a + b = 5 which is b = 5 - atherefore2a + 11 = 5 - a (which is b = b)2a + a = - 11 + 53a = - 6a = - 2looking at first equation substitute - 2 for a:b = 2a + 11b = 2*(- 2) + 11b = - 4 +11b = 7to check:a + b = 5- 2 + 7 = 5
