Which number from the set {0, 2, 4, 6} makes the equation true?
2 answers:
7x - 3 + 4x = 19
7x + 4x - 3 = 19
11x - 3 = 19 | + 3
11x - 3 + 3 = 19 + 3
11x = 22 | : 11
11x : 11 = 22 : 11
x = 2
Answer B.
Answer:
B) 2
Step-by-step explanation:
(7x2) - 3 + (4x2) =19
14 - 3 + 8 = 19
11 + 8 = 19
19 = 19
the ecuation is true because both members are equals
when you have an expression like this you have to remeber that there are priorities
, first you have to solve the multiplications and division, then you have to solve the sum and the subtraction.
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Answer:
4
Step-by-step explanation:
3x² + 2x - 4
3(-2)² + 2(-2) - 4
3(4) - 4 - 4
12 - 4 - 4
12 - 8
= 4
Graph the equations and locate the intersection.
(-3,6)
The answer is (-10) - 9= -19
