Solve the system by substitution
Y= -7x + 6
Y = - 10x
Plz help
2 answers:
Answer:
(-2, 20)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
<u>Algebra I</u>
- Coordinates (x, y)
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
y = -7x + 6
y = -10x
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Substitution</em>
- Substitute in <em>y</em> [1st Equation]: -10x = -7x + 6
- [Addition Property of Equality] Add 7x on both sides: -3x = 6
- [Division Property of Equality] Divide -3 on both sides: x = -2
<u>Step 3: Solve for </u><em><u>y</u></em>
- Substitute in <em>x </em>[2nd Equation]: y = -10(-2)
- Multiply: y = 20
1) Substitute y for y in the equation and set them equal to each other.
-10x=-7x+6
*Combine like terms*
2) add 7x to both sides
-3x=6
*isolate x: divide by -3*
3) x=-2
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Answer:
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Answer:
your answer is C.
Lines that are not coplanar and do not intersect are called skew lines.
and incase you need this answer too, Parallel Planes. Two planes that do not intersect are called parallel planes.
