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3 years ago

What is the correct first step for solving this equation -5(4x-7)+8=3x

Mathematics

2 answers:

REY [17]3 years ago

8 0

Answer:

By distributing the -5 to the 4x and -7.

Step-by-step explanation:

-5( 4x - 7 ) + 8 = 3x

-20x + 35 + 8 = 3x

dmitriy555 [2]3 years ago

6 0

Answer:

The first step is to distribute the -5

Step-by-step explanation:

The first step is to distribute the -5

-5(4x-7)+8=3x

-5*4x -5*-7 +8 = 3x

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2 years ago

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Step-by-step explanation:

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2 years ago

Find the surface area of each figure round your answers to the nearest hundredth if necessary

Wewaii [24]

Answer: 410 square km

Step-by-step explanation:

The area of each of the triangles with their base on the 10 km side is $A=\frac{1}{2}(10)(13.4)$ , so their combined area is $(10)(13.4)=134$ .

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3 0

1 year ago

Find the product. state your answer in standard form <br><br> (x+7)(x squared + 6x - 8)

USPshnik [31]

Answer:

${x}^{3} + 13 {x}^{2} + 34x - 56$

Step-by-step explanation:

$(x + 7)( {x}^{2} + 6x - 8) \\ = x ( {x}^{2} + 6x - 8) + 7( {x}^{2} + 6x - 8) \\ = {x}^{3} + 6 {x}^{2} - 8x + 7 {x}^{2} + 42x - 56 \\ = {x}^{3} + 6 {x}^{2} + 7 {x}^{2} + 42x - 8x - 56 \\ = {x}^{3} + 13 {x}^{2} + 34x - 56 \\$

6 0

3 years ago

Read 2 more answers

-4zsquared +zsquared

TEA [102]

-4

Step-by-step explanation:

-4z² + z²

let's assume you have z² and you're owing 4z², you'll pay the z² you have and you'll still owe 4

so that is -4

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3 years ago