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2 years ago

-4x + 3y = -2 Y = x - 1

Mathematics

1 answer:

Nikitich [7]2 years ago

8 0

Answer:

(-1, -2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Distributive Property

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Terms/Coefficients
Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define

-4x + 3y = -2

y = x - 1

Step 2: Solve for x

Substitution

Substitute in y: -4x + 3(x - 1) = -2
[Distributive Property] Distribute 3: -4x + 3x - 3 = -2
Combine like terms: -x - 3 = -2
[Addition Property of Equality] Add 3 on both sides: -x = 1
[Division Property of Equality] Divide -1 on both sides: x = -1

Step 3: Solve for y

Substitute in x [Original Equation]: y = -1 - 1
Subtract: y = -2

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2 years ago

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nexus9112 [7]

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2 years ago

Read 2 more answers

N +8=4 Well I’m stupid so someone help

Vladimir [108]

Answer:

n = - 4

Step-by-step explanation:

n + 8 = 4

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2 years ago

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${ - a}^{3} . {b}^{3} = ( { - a \times b})^{3} = ( { - ab})^{3} \\$

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2 years ago

2x+3y=1, -x+2y=-4 solve using substitution method

ollegr [7]

Step-by-step explanation:

1) 2x+3y-3y=1-3y. -x+2y= -4

2x/2=1-3y/2. -(1-3y/2)=-4

x=1-3y/2. -1+3y/2= -4

x=1-3(-2)/2 3y/2= -4+1

x=1+6/2 3y/2×2/3= -3×2/3

x=7/2 y= -2

S.s{ 7/3,-2}

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-4x/-4=7-6y/-4. 4(-7-6y/4)+y= -2

x= -7-6y/4. -7-6y+y = -2

x= -7-6/4 -5y/5= 5/5

x=-13/4 y= 1

S.s { -13/4, 1 }

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2 years ago