4a + 6b = 10
2a - 4b = 12...multiply by -2
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4a + 6b = 10
-4a + 8b = - 24 (result of multiplying by -2)
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14b = - 14
b = -14/14
b = -1
2a - 4b = 12
2a - 4(-1) = 12
2a + 4 = 12
2a = 12 - 4
2a = 8
a = 8/2
a = 4
so 12a = 12(4) = 48 <==
Answer:
-168
Step-by-step explanation:
14(5−11)(2)
=(14)(−6)(2)
=(−84)(2)
=−168
Plug the number for the x value and then solve the equation.
Answer:
Could you rewrite this question in english so we can understand what is being asked? Thank you!
Step-by-step explanation:
A because 2x9 equals 18 and 9x2 equals 18
Answer:
n+18
Step-by-step explanation:
A number n just means a variable n, and since we are increasing it (or adding to it), by 18, it is n+18