Mathematics, 05.01.2021 23:20 herchellann302

-2x + 2y = -4
2x - 3y = 2

Answers: 2

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Answers

Answer from: keke6361

x=4, y=2 (4,2)

Step-by-step explanation:

This is a system of equations.

-2x+2y=-4

2x-3y=2

I'll use the elimination method to solve this.

add the two equations together.

what's left:

-y=-2

multiply both by -1

y=2

now, substitute 2 as y into one of the other equations.

For example:

-2x+2(2)=-4

-2x+4=-4

-2x=-8

x=4

hope this helps!

Answer from: gennhill14

(4, 2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Algebra I

TermsSolving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

-2x + 2y = -4

2x - 3y = 2

Step 2: Rewrite Systems

2x - 3y = 2

Add 3y to both sides: 2x = 3y + 2

Step 3: Redefine Systems

-2x + 2y = -4

2x = 3y + 2

Step 4: Solve for y

Substitution

Substitute in 2x: -(3y + 2) + 2y = -4Distribute -1: -3y - 2 + 2y = -4Combine like terms: -y - 2 = -4Isolate y term: -y = -2Isolate y: y = 2

Step 5: Solve for x

Define equation: 2x - 3y = 2Substitute in y: 2x - 3(2) = 2Multiply: 2x - 6 = 2Isolate x term: 2x = 8Isolate x: x = 4

Answer from: Quest

Logical equivalent of the give question is its contrapositive

Answer from: Quest

part d

step-by-step explanation:

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