Michaelj23 Michaelj23

18-09-2017
Mathematics

contestada

3x+4(-4x+4)= -75

Please solve

Respuesta :

mtomas598 mtomas598

18-09-2017

3x+4(-4x+4)=-75

Order of operations requires distribution first:
3x+ -16x+16=-75

Then add common terms:
-13x+16=-75

Subtract 16 from both sides:
-13x = -91

Divide by -13 from both sides:
x = 7

Answer Link

garciaximena412 garciaximena412

18-09-2017

begin by distributing 4 to -4x and 4, and it equals to 3x-16x+16=-75. then add -16x+3x=-13x, to have -13x+16=-75. subtract 16 on both sides (16-16 & -75-16) to have -13=-91. finally, divide -75 by -13 to have a final answer of x=7

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