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Lana71 [14]
3 years ago
7

А. 2x +y= 2) 3х – 2y = -11 How do I solve for this? Using elimination?

Mathematics
1 answer:
ivolga24 [154]3 years ago
5 0

2 x = y + 3 , 4 x − 3 = 2 y

Rewrite the equation as y + 3 = 2 x . y + 3 = 2 x 4 x − 3 = 2 y Subtract 3 from both sides of the equation.

y = 2 x − 3 4 x − 3 = 2 y Rewrite the equation as 2 y = 4 x − 3 . y = 2 x − 3 2 y = 4 x − 3 Divide each term by 2 and simplify.

y = 2 x − 3 y = 2 x − 3 2 Create a graph to locate the intersection of the equations.

The intersection of the system of equations is the solution. No solution

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6 0
3 years ago
If 6m by 15m is a pond ,is 40m would be enough for fencing the pond
Veseljchak [2.6K]
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4 0
3 years ago
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8 0
3 years ago
I need help ASAP (20points)
Leto [7]

y = x^2 + 2x...eqn 1

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subst for y in eqn 1...

=> x^2 +2x = 3x +20

=> x^2 - x - 20 =0

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=> x = 5 or -4

for x =5, y = 35 (sub for x in eqn 1 or 2)

for x = -4, y = 8 (sub for x in eqn 1 or 2)

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