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2 years ago

14) Solve for x: 4 + 2(x + 3x) = 4 - x(2 - 3) + 2x A) 0 B) 1 2 D) 3

Mathematics

1 answer:

tester [92]2 years ago

3 0

answer;

x=0

Step-by-step explanation:

4 + 2 (x + 3x) = 4 - x(2-3) + 2x

let remove d brackets

4 + 2x + 6x = 4 - 2x + 3x + 2x

llet collect like terms

2x + 6x - 3x -2x + 2x = 4-4

5x = 0

x = 0

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Step-by-step explanation:

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Read 2 more answers

Simultaneous Equation (x+5)(x+2)=65 , xy=24 Plssss help me ✌

Ne4ueva [31]

Answer:

(-11.70, -2.05), (4.70, 5.10)

Step-by-step explanation:

Given equations

(x+5)(x+2)=65
xy=24

Solving the first equation for x:

(x+5)(x+2)=65
x^2 + 7x + 10 = 65
x^2 + 7x - 55 = 0
x = (-7 ± √(49+4*55))/2
x = -11.70, x = 4.70

Then solving for y:

y= 24/(-11.7) = -2.05
y = 24/4.7 = 5.10

Solution set:

(-11.70, -2.05), (4.70, 5.10)

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