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3 years ago

Solve -2x-(-3x-8)=6 for x

Mathematics

1 answer:

lions [1.4K]3 years ago

6 0

The value of x is -2

Step-by-step explanation:

Given equation is:

$-2x-(-3x-8)=6$

First of all, we will apply distributive property

$-2x+3x+8=6$

Combining like terms

$x+8 = 6$

Subtracting 8 from both sides

$x+8-8 = 6-8\\x = -2$

Verification:

Putting -2 in equation

$-2(-2)-[-3(-2)-8]=6\\4- (6-8) = 6\\4-(-2) = 6\\4+2 = 6\\6 = 6$

The value of x is -2

Keywords: Linear equations, variables

Learn more about linear equations at:

#LearnwithBrainly

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Answer:

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4 years ago

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ivolga24 [154]

Answer:

AC ≈ 5.87

General Formulas and Concepts:

Math

Rounding

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

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

Trigonometry

[Right Triangles Only] SOHCAHTOA

[Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

Step 1: Identify

Angle θ = 50°

Opposite Leg = 7

Adjacent Leg = BC

Step 2: Solve for BC

Substitute in variables [tangent]: tan50° = 7/AC
[Multiplication Property of Equality] Multiply AC on both sides: ACtan50° = 7
[Division Property of Equality] Isolate AC: AC = 7/tan50°
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